20171781644

素因数分解:

$2^2\times 7^1\times {\mathrm{16603}}^1\times {\mathrm{43391}}^1$

素因数の和:60005

約数の個数: 24

約数和(自身を含む): 40346923008

約数和(自身を除く): 20175141364

約数列:

[1, 2, 4, 7, 14, 28, 16603, 33206, 43391, 66412, 86782, 116221, 173564, 232442, 303737, 464884, 607474, 1214948, 720420773, 1440841546, 2881683092, 5042945411, 10085890822, 20171781644]

約数ペア:

[(1, 20171781644), (2, 10085890822), (4, 5042945411), (7, 2881683092), (14, 1440841546), (28, 720420773), (16603, 1214948), (33206, 607474), (43391, 464884), (66412, 303737), (86782, 232442), (116221, 173564)]