Q: What is the sum of all factors of the number 671,671 excluding 671,671?
A: 251,881
The factors of the number 671,671 are: 1, 7, 11, 13, 61, 77, 91, 121, 143, 427, 671, 793, 847, 1001, 1573, 4697, 5551, 7381, 8723, 11011, 51667, 61061, 95953, 671671.
If you add them up, you will get the total of 671,922. Now subtract 671,671 to get 251,881