Q: What is the sum of all factors of the number 687,423 excluding 687,423?
A: 341,313
The factors of the number 687,423 are: 1, 3, 11, 33, 37, 111, 407, 563, 1221, 1689, 6193, 18579, 20831, 62493, 229141, 687423.
If you add them up, you will get the total of 687,764. Now subtract 687,423 to get 341,313