18431145

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2677}}^1$

素因数の和:2711

約数の個数: 40

約数和(自身を含む): 34996104

約数和(自身を除く): 16564959

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 2677, 6885, 8031, 13385, 24093, 40155, 45509, 72279, 120465, 136527, 216837, 227545, 361395, 409581, 682635, 1084185, 1228743, 2047905, 3686229, 6143715, 18431145]

約数ペア:

[(1, 18431145), (3, 6143715), (5, 3686229), (9, 2047905), (15, 1228743), (17, 1084185), (27, 682635), (45, 409581), (51, 361395), (81, 227545), (85, 216837), (135, 136527), (153, 120465), (255, 72279), (405, 45509), (459, 40155), (765, 24093), (1377, 13385), (2295, 8031), (2677, 6885)]