function
Given a positive integer , the sum of the integers such that is the value of the sum of divisors function for , often symbolized by a Greek lowercase . Thus,
Sometimes this function is referred to as , highlighting its relation to the divisor function.
Given coprime integers and (that is, ) then , meaning that the sum of divisors function is a multiplicative function.
Title | function |
---|---|
Canonical name | sigmaFunction |
Date of creation | 2013-03-22 16:07:12 |
Last modified on | 2013-03-22 16:07:12 |
Owner | CompositeFan (12809) |
Last modified by | CompositeFan (12809) |
Numerical id | 8 |
Author | CompositeFan (12809) |
Entry type | Definition |
Classification | msc 11A25 |
Synonym | divisor sigma |
Synonym | sum of divisors function |
Synonym | function |