21718576

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{123401}}^1$

素因数の和:123420

約数の個数: 20

約数和(自身を含む): 45905544

約数和(自身を除く): 24186968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 123401, 246802, 493604, 987208, 1357411, 1974416, 2714822, 5429644, 10859288, 21718576]

約数ペア:

[(1, 21718576), (2, 10859288), (4, 5429644), (8, 2714822), (11, 1974416), (16, 1357411), (22, 987208), (44, 493604), (88, 246802), (176, 123401)]