21557522

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25243}}^1$

素因数の和:25313

約数の個数: 16

約数和(自身を含む): 37563072

約数和(自身を除く): 16005550

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 25243, 50486, 176701, 353402, 1539823, 3079646, 10778761, 21557522]

約数ペア:

[(1, 21557522), (2, 10778761), (7, 3079646), (14, 1539823), (61, 353402), (122, 176701), (427, 50486), (854, 25243)]