Q: What is the sum of all factors of the number 1,720,621 excluding 1,720,621?
A: 473,939
The factors of the number 1,720,621 are: 1, 7, 17, 19, 119, 133, 323, 761, 2261, 5327, 12937, 14459, 90559, 101213, 245803, 1720621.
If you add them up, you will get the total of 1,721,094. Now subtract 1,720,621 to get 473,939