Manuals/calci/PERFECTNUMBERS

PERFECTNUMBERS (Upto,StartFrom)

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Upto } is the maximum number limit.
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle StartFrom} is the minimum number limit.

Description

This function returns the list of Perfect numbers.
In PERFECTNUMBERS (Upto,StartFrom),Upto is the Maximum number limit to display and Start from is the Minimum number to start Perfect number list.
Perfect number is a positive integer which is equal to the sum of its proper divisors.
The smallest perfect number is 6, which is the sum of 1, 2, and 3.