18789165

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2729}}^1$

素因数の和:2763

約数の個数: 40

約数和(自身を含む): 35675640

約数和(自身を除く): 16886475

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 2729, 6885, 8187, 13645, 24561, 40935, 46393, 73683, 122805, 139179, 221049, 231965, 368415, 417537, 695895, 1105245, 1252611, 2087685, 3757833, 6263055, 18789165]

約数ペア:

[(1, 18789165), (3, 6263055), (5, 3757833), (9, 2087685), (15, 1252611), (17, 1105245), (27, 695895), (45, 417537), (51, 368415), (81, 231965), (85, 221049), (135, 139179), (153, 122805), (255, 73683), (405, 46393), (459, 40935), (765, 24561), (1377, 13645), (2295, 8187), (2729, 6885)]