21904802

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{8783}}^1$

素因数の和:8857

約数の個数: 16

約数和(自身を含む): 34784640

約数和(自身を除く): 12879838

約数列:

[1, 2, 29, 43, 58, 86, 1247, 2494, 8783, 17566, 254707, 377669, 509414, 755338, 10952401, 21904802]

約数ペア:

[(1, 21904802), (2, 10952401), (29, 755338), (43, 509414), (58, 377669), (86, 254707), (1247, 17566), (2494, 8783)]