153176

Appears in sequences

• Larger of amicable pair.at n=16A002046
• Largest members of k-sociable cycles of order r.at n=25A183013
• Numbers k such that sigma(k) = sigma(sigma(k)-k).at n=38A206708
• Deficient numbers whose aliquot sequence is deficient, abundant, deficient, ..., etc.at n=31A234970
• Let us denote 's' the sum of the deficient numbers in the aliquot parts of x. Sequence lists numbers x such that sigma(s)-s is equal to x.at n=26A254879
• Amicable pairs.at n=33A259180
• Amicable pairs (x < y) ordered by nondecreasing sum (x + y) and then by increasing x.at n=33A259933
• Larger of amicable pair (x, y) as they are listed in A259933.at n=16A260087
• Amicable pairs of even numbers.at n=23A262622
• Even amicable numbers.at n=24A262624
• List of pairs of amicable numbers (m,n) where the sum of the pair is divisible by 10.at n=19A291422
• Larger of bi-unitary amicable pair.at n=24A292981
• Amicable pairs with the property that the number of divisors of the smaller member is greater than the number of divisors of the larger member.at n=19A328063
• Integers k such that there exists an integer 0<m<k such that m*sigma(m)^2 + k*sigma(k)^2 = (m+k)^3.at n=19A383714
• Integers k such that there exists an integer 0<m<k such that sigma(m)^2 + sigma(k)^2 = 2*(m+k)^2.at n=34A385008
• Numbers y such that there exists an integer 0 < x < y such that sigma(x)^x * sigma(y)^y = (x+y)^(x+y).at n=16A385186