Q: What is the sum of all factors of the number 1,221,639 excluding 1,221,639?
A: 413,673
The factors of the number 1,221,639 are: 1, 3, 313, 939, 1301, 3903, 407213, 1221639.
If you add them up, you will get the total of 1,222,052. Now subtract 1,221,639 to get 413,673