31518221

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 39230136

約数和(自身を除く): 7711915

約数列:

[1, 7, 17, 49, 119, 157, 241, 833, 1099, 1687, 2669, 4097, 7693, 11809, 18683, 28679, 37837, 130781, 200753, 264859, 643229, 1854013, 4502603, 31518221]

約数ペア:

[(1, 31518221), (7, 4502603), (17, 1854013), (49, 643229), (119, 264859), (157, 200753), (241, 130781), (833, 37837), (1099, 28679), (1687, 18683), (2669, 11809), (4097, 7693)]