19505727

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{463}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 29339648

約数和(自身を除く): 9833921

約数列:

[1, 3, 9, 31, 93, 151, 279, 453, 463, 1359, 1389, 4167, 4681, 14043, 14353, 42129, 43059, 69913, 129177, 209739, 629217, 2167303, 6501909, 19505727]

約数ペア:

[(1, 19505727), (3, 6501909), (9, 2167303), (31, 629217), (93, 209739), (151, 129177), (279, 69913), (453, 43059), (463, 42129), (1359, 14353), (1389, 14043), (4167, 4681)]