Divisor Sum of 11,655

Example of Divisor Sum of Integer

 * $\map {\sigma_1} {11 \, 655} = 23 \, 712$

where $\sigma_1$ denotes the divisor sum function.

Proof
We have that:
 * $11 \, 655 = 3^2 \times 5 \times 7 \times 37$

Hence: