Q: What is the sum of all factors of the number 1,263,309 excluding 1,263,309?
A: 421,107
The factors of the number 1,263,309 are: 1, 3, 421103, 1263309.
If you add them up, you will get the total of 1,263,730. Now subtract 1,263,309 to get 421,107