691256

Appears in sequences

• Larger of amicable pair (x, y) as they are listed in A259933.at n=33A260087
• Larger of tri-unitary amicable numbers pair: numbers (m, n) such that tsigma(m) = tsigma(n) = m + n, where tsigma(n) is the sum of the tri-unitary divisors of n (A324706).at n=30A324709
• 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=37A328063
• Amicable pairs with the property that the number of divisors of the smaller member is twice the number of divisors of the larger member.at n=29A328065
• 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=37A383714