18684445

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 26314848

約数和(自身を除く): 7630403

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 221, 457, 481, 629, 1105, 2285, 2405, 3145, 5941, 7769, 8177, 16909, 29705, 38845, 40885, 84545, 100997, 219817, 287453, 504985, 1099085, 1437265, 3736889, 18684445]

約数ペア:

[(1, 18684445), (5, 3736889), (13, 1437265), (17, 1099085), (37, 504985), (65, 287453), (85, 219817), (185, 100997), (221, 84545), (457, 40885), (481, 38845), (629, 29705), (1105, 16909), (2285, 8177), (2405, 7769), (3145, 5941)]