20923981

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1061}}^1$

素因数の和:1152

約数の個数: 16

約数和(自身を含む): 23729328

約数和(自身を除く): 2805347

約数列:

[1, 13, 37, 41, 481, 533, 1061, 1517, 13793, 19721, 39257, 43501, 510341, 565513, 1609537, 20923981]

約数ペア:

[(1, 20923981), (13, 1609537), (37, 565513), (41, 510341), (481, 43501), (533, 39257), (1061, 19721), (1517, 13793)]