21161116

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{52379}}^1$

素因数の和:52484

約数の個数: 12

約数和(自身を含む): 37399320

約数和(自身を除く): 16238204

約数列:

[1, 2, 4, 101, 202, 404, 52379, 104758, 209516, 5290279, 10580558, 21161116]

約数ペア:

[(1, 21161116), (2, 10580558), (4, 5290279), (101, 209516), (202, 104758), (404, 52379)]