21000340879

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{716173}}^1$

素因数の和:716310

約数の個数: 16

約数和(自身を含む): 24750973440

約数和(自身を除く): 3750632561

約数列:

[1, 7, 59, 71, 413, 497, 4189, 29323, 716173, 5013211, 42254207, 50848283, 295779449, 355937981, 3000048697, 21000340879]

約数ペア:

[(1, 21000340879), (7, 3000048697), (59, 355937981), (71, 295779449), (413, 50848283), (497, 42254207), (4189, 5013211), (29323, 716173)]