Q: What is the sum of all factors of the number 1,561,661 excluding 1,561,661?
A: 25,663
The factors of the number 1,561,661 are: 1, 61, 25601, 1561661.
If you add them up, you will get the total of 1,561,686. Now subtract 1,561,661 to get 25,663