21290137

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{443}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 24743232

約数和(自身を除く): 3453095

約数列:

[1, 11, 17, 187, 257, 443, 2827, 4369, 4873, 7531, 48059, 82841, 113851, 1252361, 1935467, 21290137]

約数ペア:

[(1, 21290137), (11, 1935467), (17, 1252361), (187, 113851), (257, 82841), (443, 48059), (2827, 7531), (4369, 4873)]