21939503248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{13147}}^1$

素因数の和:13352

約数の個数: 80

約数和(自身を含む): 46836752256

約数和(自身を除く): 24897249008

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 113, 142, 208, 226, 284, 452, 568, 904, 923, 1136, 1469, 1808, 1846, 2938, 3692, 5876, 7384, 8023, 11752, 13147, 14768, 16046, 23504, 26294, 32092, 52588, 64184, 104299, 105176, 128368, 170911, 208598, 210352, 341822, 417196, 683644, 834392, 933437, 1367288, 1485611, 1668784, 1866874, 2734576, 2971222, 3733748, 5942444, 7467496, 11884888, 12134681, 14934992, 19312943, 23769776, 24269362, 38625886, 48538724, 77251772, 97077448, 105478381, 154503544, 194154896, 210956762, 309007088, 421913524, 843827048, 1371218953, 1687654096, 2742437906, 5484875812, 10969751624, 21939503248]

約数ペア:

[(1, 21939503248), (2, 10969751624), (4, 5484875812), (8, 2742437906), (13, 1687654096), (16, 1371218953), (26, 843827048), (52, 421913524), (71, 309007088), (104, 210956762), (113, 194154896), (142, 154503544), (208, 105478381), (226, 97077448), (284, 77251772), (452, 48538724), (568, 38625886), (904, 24269362), (923, 23769776), (1136, 19312943), (1469, 14934992), (1808, 12134681), (1846, 11884888), (2938, 7467496), (3692, 5942444), (5876, 3733748), (7384, 2971222), (8023, 2734576), (11752, 1866874), (13147, 1668784), (14768, 1485611), (16046, 1367288), (23504, 933437), (26294, 834392), (32092, 683644), (52588, 417196), (64184, 341822), (104299, 210352), (105176, 208598), (128368, 170911)]