Q: What is the sum of all factors of the number 1,263,639 excluding 1,263,639?
A: 550,873
The factors of the number 1,263,639 are: 1, 3, 13, 39, 32401, 97203, 421213, 1263639.
If you add them up, you will get the total of 1,264,189. Now subtract 1,263,639 to get 550,873