20528984

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12641}}^1$

素因数の和:12683

約数の個数: 32

約数和(自身を含む): 45511200

約数和(自身を除く): 24982216

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12641, 25282, 50564, 88487, 101128, 176974, 353948, 366589, 707896, 733178, 1466356, 2566123, 2932712, 5132246, 10264492, 20528984]

約数ペア:

[(1, 20528984), (2, 10264492), (4, 5132246), (7, 2932712), (8, 2566123), (14, 1466356), (28, 733178), (29, 707896), (56, 366589), (58, 353948), (116, 176974), (203, 101128), (232, 88487), (406, 50564), (812, 25282), (1624, 12641)]