20887288

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{401}}^1$

素因数の和:807

約数の個数: 32

約数和(自身を含む): 41679360

約数和(自身を除く): 20792072

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 383, 401, 766, 802, 1532, 1604, 3064, 3208, 6511, 6817, 13022, 13634, 26044, 27268, 52088, 54536, 153583, 307166, 614332, 1228664, 2610911, 5221822, 10443644, 20887288]

約数ペア:

[(1, 20887288), (2, 10443644), (4, 5221822), (8, 2610911), (17, 1228664), (34, 614332), (68, 307166), (136, 153583), (383, 54536), (401, 52088), (766, 27268), (802, 26044), (1532, 13634), (1604, 13022), (3064, 6817), (3208, 6511)]