21558397

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{6247}}^1$

素因数の和:6300

約数の個数: 16

約数和(自身を含む): 26991360

約数和(自身を除く): 5432963

約数列:

[1, 7, 17, 29, 119, 203, 493, 3451, 6247, 43729, 106199, 181163, 743393, 1268141, 3079771, 21558397]

約数ペア:

[(1, 21558397), (7, 3079771), (17, 1268141), (29, 743393), (119, 181163), (203, 106199), (493, 43729), (3451, 6247)]