21461531

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{13873}}^1$

素因数の和:13910

約数の個数: 16

約数和(自身を含む): 27969984

約数和(自身を除く): 6508453

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 13873, 97111, 180349, 235841, 1262443, 1650887, 3065933, 21461531]

約数ペア:

[(1, 21461531), (7, 3065933), (13, 1650887), (17, 1262443), (91, 235841), (119, 180349), (221, 97111), (1547, 13873)]