21239636

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{482719}}^1$

素因数の和:482734

約数の個数: 12

約数和(自身を含む): 40548480

約数和(自身を除く): 19308844

約数列:

[1, 2, 4, 11, 22, 44, 482719, 965438, 1930876, 5309909, 10619818, 21239636]

約数ペア:

[(1, 21239636), (2, 10619818), (4, 5309909), (11, 1930876), (22, 965438), (44, 482719)]