Q: What is the sum of all factors of the number 1,420,809 excluding 1,420,809?
A: 740,343
The factors of the number 1,420,809 are: 1, 3, 13, 17, 39, 51, 221, 663, 2143, 6429, 27859, 36431, 83577, 109293, 473603, 1420809.
If you add them up, you will get the total of 1,421,549. Now subtract 1,420,809 to get 740,343