20176436

素因数分解:

$2^2\times 7^2\times {\mathrm{311}}^1\times {\mathrm{331}}^1$

素因数の和:660

約数の個数: 36

約数和(自身を含む): 41330016

約数和(自身を除く): 21153580

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 311, 331, 622, 662, 1244, 1324, 2177, 2317, 4354, 4634, 8708, 9268, 15239, 16219, 30478, 32438, 60956, 64876, 102941, 205882, 411764, 720587, 1441174, 2882348, 5044109, 10088218, 20176436]

約数ペア:

[(1, 20176436), (2, 10088218), (4, 5044109), (7, 2882348), (14, 1441174), (28, 720587), (49, 411764), (98, 205882), (196, 102941), (311, 64876), (331, 60956), (622, 32438), (662, 30478), (1244, 16219), (1324, 15239), (2177, 9268), (2317, 8708), (4354, 4634)]