Q: What is the sum of all factors of the number 1,578,421 excluding 1,578,421?
A: 195,659
The factors of the number 1,578,421 are: 1, 13, 23, 299, 5279, 68627, 121417, 1578421.
If you add them up, you will get the total of 1,578,616. Now subtract 1,578,421 to get 195,659