19717892

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{461}}^1$

素因数の和:536

約数の個数: 36

約数和(自身を含む): 37727844

約数和(自身を除く): 18009952

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 289, 461, 578, 629, 922, 1156, 1258, 1844, 2516, 7837, 10693, 15674, 17057, 21386, 31348, 34114, 42772, 68228, 133229, 266458, 289969, 532916, 579938, 1159876, 4929473, 9858946, 19717892]

約数ペア:

[(1, 19717892), (2, 9858946), (4, 4929473), (17, 1159876), (34, 579938), (37, 532916), (68, 289969), (74, 266458), (148, 133229), (289, 68228), (461, 42772), (578, 34114), (629, 31348), (922, 21386), (1156, 17057), (1258, 15674), (1844, 10693), (2516, 7837)]