Q: What is the sum of all factors of the number 1,609,639 excluding 1,609,639?
A: 6,921
The factors of the number 1,609,639 are: 1, 241, 6679, 1609639.
If you add them up, you will get the total of 1,609,645. Now subtract 1,609,639 to get 6,921