Q: What is the sum of all factors of the number 399,942 excluding 399,942?
A: 518,274
The factors of the number 399,942 are: 1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 1307, 2614, 3921, 7842, 11763, 22219, 23526, 44438, 66657, 133314, 199971, 399942.
If you add them up, you will get the total of 400,460. Now subtract 399,942 to get 518,274