20178522

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 54792192

約数和(自身を除く): 34613670

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 97, 117, 126, 127, 182, 194, 234, 254, 273, 291, 381, 546, 582, 679, 762, 819, 873, 889, 1143, 1261, 1358, 1638, 1651, 1746, 1778, 2037, 2286, 2522, 2667, 3302, 3783, 4074, 4953, 5334, 6111, 7566, 8001, 8827, 9906, 11349, 11557, 12222, 12319, 14859, 16002, 17654, 22698, 23114, 24638, 26481, 29718, 34671, 36957, 52962, 69342, 73914, 79443, 86233, 104013, 110871, 158886, 160147, 172466, 208026, 221742, 258699, 320294, 480441, 517398, 776097, 960882, 1121029, 1441323, 1552194, 2242058, 2882646, 3363087, 6726174, 10089261, 20178522]

約数ペア:

[(1, 20178522), (2, 10089261), (3, 6726174), (6, 3363087), (7, 2882646), (9, 2242058), (13, 1552194), (14, 1441323), (18, 1121029), (21, 960882), (26, 776097), (39, 517398), (42, 480441), (63, 320294), (78, 258699), (91, 221742), (97, 208026), (117, 172466), (126, 160147), (127, 158886), (182, 110871), (194, 104013), (234, 86233), (254, 79443), (273, 73914), (291, 69342), (381, 52962), (546, 36957), (582, 34671), (679, 29718), (762, 26481), (819, 24638), (873, 23114), (889, 22698), (1143, 17654), (1261, 16002), (1358, 14859), (1638, 12319), (1651, 12222), (1746, 11557), (1778, 11349), (2037, 9906), (2286, 8827), (2522, 8001), (2667, 7566), (3302, 6111), (3783, 5334), (4074, 4953)]