Q: What is the sum of all factors of the number 3,956 excluding 3,956?
A: 3,436
The factors of the number 3,956 are: 1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956.
If you add them up, you will get the total of 3,959. Now subtract 3,956 to get 3,436