Sum of divisor powers

1 · John Cook · Aug. 31, 2020, 2:41 a.m.
The function σk takes an integer n and returns the sum of the kth powers of divisors of n. For example, the divisors of 14 are 1, 2, 4, 7, and 14. If we set k = 3 we get σ3(n) = 1³ + 2³ + 4³ + 7³ + 14³ = 3096. A couple […] The post Sum of divisor powers first appeared on John D. Cook....