15818517

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 29272320

約数和(自身を除く): 13453803

約数列:

[1, 3, 9, 11, 13, 17, 27, 33, 39, 51, 99, 117, 143, 153, 187, 221, 241, 297, 351, 429, 459, 561, 663, 723, 1287, 1683, 1989, 2169, 2431, 2651, 3133, 3861, 4097, 5049, 5967, 6507, 7293, 7953, 9399, 12291, 21879, 23859, 28197, 34463, 36873, 45067, 53261, 65637, 71577, 84591, 103389, 110619, 135201, 159783, 310167, 405603, 479349, 585871, 930501, 1216809, 1438047, 1757613, 5272839, 15818517]

約数ペア:

[(1, 15818517), (3, 5272839), (9, 1757613), (11, 1438047), (13, 1216809), (17, 930501), (27, 585871), (33, 479349), (39, 405603), (51, 310167), (99, 159783), (117, 135201), (143, 110619), (153, 103389), (187, 84591), (221, 71577), (241, 65637), (297, 53261), (351, 45067), (429, 36873), (459, 34463), (561, 28197), (663, 23859), (723, 21879), (1287, 12291), (1683, 9399), (1989, 7953), (2169, 7293), (2431, 6507), (2651, 5967), (3133, 5049), (3861, 4097)]