19561828

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{3109}}^1$

素因数の和:3148

約数の個数: 36

約数和(自身を含む): 40535740

約数和(自身を除く): 20973912

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3109, 3146, 6218, 6292, 12436, 34199, 40417, 68398, 80834, 136796, 161668, 376189, 444587, 752378, 889174, 1504756, 1778348, 4890457, 9780914, 19561828]

約数ペア:

[(1, 19561828), (2, 9780914), (4, 4890457), (11, 1778348), (13, 1504756), (22, 889174), (26, 752378), (44, 444587), (52, 376189), (121, 161668), (143, 136796), (242, 80834), (286, 68398), (484, 40417), (572, 34199), (1573, 12436), (3109, 6292), (3146, 6218)]