info prev up next book cdrom email home

Pair Sum

Given an Amicable Pair $(m,n)$, the quantity

\begin{displaymath}
\sigma(m)=\sigma(n)=s(m)+s(n)=m+n
\end{displaymath}

is called the pair sum, where $\sigma(n)$ is the Divisor Function and $s(n)$ is the Restricted Divisor Function.

See also Amicable Pair




© 1996-9 Eric W. Weisstein
1999-05-26