520040213

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{6079}}^1$

素因数の和:6209

約数の個数: 24

約数和(自身を含む): 659850240

約数和(自身を除く): 139810027

約数列:

[1, 7, 11, 77, 101, 121, 707, 847, 1111, 6079, 7777, 12221, 42553, 66869, 85547, 468083, 613979, 735559, 4297853, 5148913, 6753769, 47276383, 74291459, 520040213]

約数ペア:

[(1, 520040213), (7, 74291459), (11, 47276383), (77, 6753769), (101, 5148913), (121, 4297853), (707, 735559), (847, 613979), (1111, 468083), (6079, 85547), (7777, 66869), (12221, 42553)]