Q: What is the sum of all factors of the number 20,985 excluding 20,985?
A: 12,615
The factors of the number 20,985 are: 1, 3, 5, 15, 1399, 4197, 6995, 20985.
If you add them up, you will get the total of 20,997. Now subtract 20,985 to get 12,615