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updated 5 years ago

divisor(n) by Yash

Calculate the distinct divisors of a number not just the prime factors. (divisor, factors, factorization)

divisor(n)

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updated 5 years ago

The divisors of a number, perfect, amicable, and sociable numbers by John D'Errico

Tools to work (and play) with the divisors of a number (divisors, aliquot parts, aliquot sum)

The aliquot parts of a number

aliquotparts(N)

aliquotsum(N,p)

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updated 10 years ago

sigma.m by David Terr

Given nonnegative integers k and n, sigma(k,n) is the sum of the kth powers of the divisors of n. (symbolic math, divisor, factor)

sigma(k,n)

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updated 10 years ago

factor2.m by David Terr

factor2(n) returns the prime factorization of n as a k by 2 matrix. (symbolic math, factor, divisor)

factor2( n )

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