21285468828

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{2137}}^1\times {\mathrm{21283}}^1$

素因数の和:23443

約数の個数: 72

約数和(自身を含む): 57973614608

約数和(自身を除く): 36688145780

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 2137, 4274, 6411, 8548, 12822, 19233, 21283, 25644, 27781, 38466, 42566, 55562, 63849, 76932, 83343, 85132, 111124, 127698, 166686, 191547, 250029, 255396, 276679, 333372, 383094, 500058, 553358, 766188, 830037, 1000116, 1106716, 1660074, 2490111, 3320148, 4980222, 9960444, 45481771, 90963542, 136445313, 181927084, 272890626, 409335939, 545781252, 591263023, 818671878, 1182526046, 1637343756, 1773789069, 2365052092, 3547578138, 5321367207, 7095156276, 10642734414, 21285468828]

約数ペア:

[(1, 21285468828), (2, 10642734414), (3, 7095156276), (4, 5321367207), (6, 3547578138), (9, 2365052092), (12, 1773789069), (13, 1637343756), (18, 1182526046), (26, 818671878), (36, 591263023), (39, 545781252), (52, 409335939), (78, 272890626), (117, 181927084), (156, 136445313), (234, 90963542), (468, 45481771), (2137, 9960444), (4274, 4980222), (6411, 3320148), (8548, 2490111), (12822, 1660074), (19233, 1106716), (21283, 1000116), (25644, 830037), (27781, 766188), (38466, 553358), (42566, 500058), (55562, 383094), (63849, 333372), (76932, 276679), (83343, 255396), (85132, 250029), (111124, 191547), (127698, 166686)]