Q: What is the sum of all factors of the number 1,331,421 excluding 1,331,421?
A: 853,923
The factors of the number 1,331,421 are: 1, 3, 7, 13, 21, 39, 91, 273, 4877, 14631, 34139, 63401, 102417, 190203, 443807, 1331421.
If you add them up, you will get the total of 1,332,274. Now subtract 1,331,421 to get 853,923