Q: What is the sum of all factors of the number 861,381 excluding 861,381?
A: 438,139
The factors of the number 861,381 are: 1, 3, 9, 27, 61, 183, 523, 549, 1569, 1647, 4707, 14121, 31903, 95709, 287127, 861381.
If you add them up, you will get the total of 861,819. Now subtract 861,381 to get 438,139