12721185

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 25090560

約数和(自身を除く): 12369375

約数列:

[1, 3, 5, 9, 15, 17, 23, 27, 45, 51, 69, 85, 115, 135, 153, 207, 241, 255, 345, 391, 459, 621, 723, 765, 1035, 1173, 1205, 1955, 2169, 2295, 3105, 3519, 3615, 4097, 5543, 5865, 6507, 10557, 10845, 12291, 16629, 17595, 20485, 27715, 32535, 36873, 49887, 52785, 61455, 83145, 94231, 110619, 149661, 184365, 249435, 282693, 471155, 553095, 748305, 848079, 1413465, 2544237, 4240395, 12721185]

約数ペア:

[(1, 12721185), (3, 4240395), (5, 2544237), (9, 1413465), (15, 848079), (17, 748305), (23, 553095), (27, 471155), (45, 282693), (51, 249435), (69, 184365), (85, 149661), (115, 110619), (135, 94231), (153, 83145), (207, 61455), (241, 52785), (255, 49887), (345, 36873), (391, 32535), (459, 27715), (621, 20485), (723, 17595), (765, 16629), (1035, 12291), (1173, 10845), (1205, 10557), (1955, 6507), (2169, 5865), (2295, 5543), (3105, 4097), (3519, 3615)]