Q: What is the sum of all factors of the number 1,978,539 excluding 1,978,539?
A: 659,517
The factors of the number 1,978,539 are: 1, 3, 659513, 1978539.
If you add them up, you will get the total of 1,979,198. Now subtract 1,978,539 to get 659,517