20494684

素因数分解:

$2^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2309}}^1$

素因数の和:2637

約数の個数: 24

約数和(自身を含む): 41136480

約数和(自身を除く): 20641796

約数列:

[1, 2, 4, 7, 14, 28, 317, 634, 1268, 2219, 2309, 4438, 4618, 8876, 9236, 16163, 32326, 64652, 731953, 1463906, 2927812, 5123671, 10247342, 20494684]

約数ペア:

[(1, 20494684), (2, 10247342), (4, 5123671), (7, 2927812), (14, 1463906), (28, 731953), (317, 64652), (634, 32326), (1268, 16163), (2219, 9236), (2309, 8876), (4438, 4618)]