DivisorSigma

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Documentation MathematicaBuilt-in Functions Mathematical Functions Number Theory

DivisorSigma

DivisorSigma[k, n] gives the divisor function .

Integer mathematical function (see Section A.3.10).

is the sum of the powers of the divisors of .

DivisorSigma[k, n, GaussianIntegers -> True] includes divisors that are Gaussian integers.

See Section 3.2.4.

See also: EulerPhi.

New in Version 1.

Further Examples