Q: What is the sum of all factors of the number 1,556,389 excluding 1,556,389?
A: 4,391
The factors of the number 1,556,389 are: 1, 389, 4001, 1556389.
If you add them up, you will get the total of 1,556,393. Now subtract 1,556,389 to get 4,391