Divisor Sum of 19,845

Example of Divisor Sum of Integer

 * $\map {\sigma_1} {19 \, 845} = 41 \, 382$

where $\sigma_1$ denotes the divisor sum function.

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

Hence: