Q: What is the sum of all factors of the number 399,819 excluding 399,819?
A: 219,701
The factors of the number 399,819 are: 1, 3, 7, 21, 79, 237, 241, 553, 723, 1659, 1687, 5061, 19039, 57117, 133273, 399819.
If you add them up, you will get the total of 400,038. Now subtract 399,819 to get 219,701