21779261

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{6311}}^1$

素因数の和:6364

約数の個数: 16

約数和(自身を含む): 27267840

約数和(自身を除く): 5488579

約数列:

[1, 7, 17, 29, 119, 203, 493, 3451, 6311, 44177, 107287, 183019, 751009, 1281133, 3111323, 21779261]

約数ペア:

[(1, 21779261), (7, 3111323), (17, 1281133), (29, 751009), (119, 183019), (203, 107287), (493, 44177), (3451, 6311)]