Q: What is the sum of all factors of the number 21,705 excluding 21,705?
A: 13,047
The factors of the number 21,705 are: 1, 3, 5, 15, 1447, 4341, 7235, 21705.
If you add them up, you will get the total of 21,718. Now subtract 21,705 to get 13,047