Q: What is the sum of all factors of the number 1,978,209 excluding 1,978,209?
A: 1,025,631
The factors of the number 1,978,209 are: 1, 3, 9, 27, 41, 123, 369, 1107, 1787, 5361, 16083, 48249, 73267, 219801, 659403, 1978209.
If you add them up, you will get the total of 1,978,210. Now subtract 1,978,209 to get 1,025,631