20717916

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40151}}^1$

素因数の和:40201

約数の個数: 24

約数和(自身を含む): 49467264

約数和(自身を除く): 28749348

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40151, 80302, 120453, 160604, 240906, 481812, 1726493, 3452986, 5179479, 6905972, 10358958, 20717916]

約数ペア:

[(1, 20717916), (2, 10358958), (3, 6905972), (4, 5179479), (6, 3452986), (12, 1726493), (43, 481812), (86, 240906), (129, 160604), (172, 120453), (258, 80302), (516, 40151)]