Divisor Sum of 33,705

Example of Sigma Function of Integer

 * $\map \sigma {33 \, 705} = 67 \, 392$

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

Proof
We have that:
 * $33 \, 705 = 3^2 \times 5 \times 7 \times 107$

Hence: