Q: What is the sum of all factors of the number 3,900,871 excluding 3,900,871?
A: 786,329
The factors of the number 3,900,871 are: 1, 13, 17, 19, 221, 247, 323, 929, 4199, 12077, 15793, 17651, 205309, 229463, 300067, 3900871.
If you add them up, you will get the total of 3,901,657. Now subtract 3,900,871 to get 786,329