20425768

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{21101}}^1$

素因数の和:21129

約数の個数: 24

約数和(自身を含む): 42098490

約数和(自身を除く): 21672722

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 21101, 42202, 84404, 168808, 232111, 464222, 928444, 1856888, 2553221, 5106442, 10212884, 20425768]

約数ペア:

[(1, 20425768), (2, 10212884), (4, 5106442), (8, 2553221), (11, 1856888), (22, 928444), (44, 464222), (88, 232111), (121, 168808), (242, 84404), (484, 42202), (968, 21101)]