21554433207

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:458

約数の個数: 128

約数和(自身を含む): 35831808000

約数和(自身を除く): 14277374793

約数列:

[1, 3, 9, 19, 27, 31, 53, 57, 93, 107, 159, 171, 239, 279, 321, 477, 513, 589, 717, 837, 963, 1007, 1431, 1643, 1767, 2033, 2151, 2889, 3021, 3317, 4541, 4929, 5301, 5671, 6099, 6453, 7409, 9063, 9951, 12667, 13623, 14787, 15903, 17013, 18297, 22227, 25573, 27189, 29853, 31217, 38001, 40869, 44361, 51039, 54891, 63023, 66681, 76719, 89559, 93651, 107749, 114003, 122607, 140771, 153117, 175801, 189069, 200043, 230157, 240673, 280953, 323247, 342009, 392677, 422313, 485887, 527403, 567207, 690471, 722019, 792763, 842859, 969741, 1178031, 1266939, 1355369, 1457661, 1582209, 1701621, 2166057, 2378289, 2909223, 3340219, 3534093, 3800817, 4066107, 4372983, 4746627, 6498171, 7134867, 7460863, 10020657, 10602279, 12198321, 13118949, 15062497, 21404601, 22382589, 25752011, 30061971, 36594963, 42016439, 45187491, 67147767, 77256033, 90185913, 126049317, 135562473, 201443301, 231768099, 378147951, 406687419, 695304297, 798312341, 1134443853, 2394937023, 7184811069, 21554433207]

約数ペア:

[(1, 21554433207), (3, 7184811069), (9, 2394937023), (19, 1134443853), (27, 798312341), (31, 695304297), (53, 406687419), (57, 378147951), (93, 231768099), (107, 201443301), (159, 135562473), (171, 126049317), (239, 90185913), (279, 77256033), (321, 67147767), (477, 45187491), (513, 42016439), (589, 36594963), (717, 30061971), (837, 25752011), (963, 22382589), (1007, 21404601), (1431, 15062497), (1643, 13118949), (1767, 12198321), (2033, 10602279), (2151, 10020657), (2889, 7460863), (3021, 7134867), (3317, 6498171), (4541, 4746627), (4929, 4372983), (5301, 4066107), (5671, 3800817), (6099, 3534093), (6453, 3340219), (7409, 2909223), (9063, 2378289), (9951, 2166057), (12667, 1701621), (13623, 1582209), (14787, 1457661), (15903, 1355369), (17013, 1266939), (18297, 1178031), (22227, 969741), (25573, 842859), (27189, 792763), (29853, 722019), (31217, 690471), (38001, 567207), (40869, 527403), (44361, 485887), (51039, 422313), (54891, 392677), (63023, 342009), (66681, 323247), (76719, 280953), (89559, 240673), (93651, 230157), (107749, 200043), (114003, 189069), (122607, 175801), (140771, 153117)]