Divisor Sum of 10,395

Example of Sigma Function of Integer

 * $\sigma \left({10 \, 395}\right) = 23 \, 040$

where $\sigma$ denotes the $\sigma$ function.

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

Hence: