Divisor Sum of 10,395

Example of Divisor Sum of Integer

 * $\map {\sigma_1} {10 \, 395} = 23 \, 040$

where $\sigma_1$ denotes the divisor sum function.

Proof
We have that:
 * $10 \, 395 = 3^3 \times 5 \times 7 \times 11$

Hence: