117808

Appears in sequences

• Numbers m such that 2*m - sigma(m) is a divisor of m and greater than one, where sigma = A000203 is the sum of divisors.at n=23A060326
• Numbers k whose abundance sigma(k) - 2*k = -16. Numbers k whose deficiency is 16.at n=12A125248
• Deficient-perfect numbers: Deficient numbers n such that n/(2n-sigma(n)) is an integer.at n=40A271816
• Numbers k such that sigma(k) == 0 (mod k-8).at n=22A274562