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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 the Mathematica book: Section 3.2.4.
  • See also: EulerPhi.

    Further Examples

    Here are two ways to find the sum of the divisors of .

    In[1]:=

    Out[1]=

    In[2]:=

    Out[2]=