Q: What is the sum of all factors of the number 678,861 excluding 678,861?
A: 435,549
The factors of the number 678,861 are: 1, 3, 9, 17, 27, 29, 51, 81, 87, 153, 261, 289, 459, 493, 783, 867, 1377, 1479, 2349, 2601, 4437, 7803, 8381, 13311, 23409, 25143, 39933, 75429, 226287, 678861.
If you add them up, you will get the total of 679,296. Now subtract 678,861 to get 435,549