Divisor Sum of 19,845

Example of Sigma Function of Integer

 * $\sigma \left({19 \, 845}\right) = 41 \, 382$

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

Proof
We have that:
 * $19 \, 845 = 3^4 \times 5 \times 7^2$

Hence: