20677900908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{197}}^2\times {\mathrm{6343}}^1$

素因数の和:6751

約数の個数: 72

約数和(自身を含む): 55431131392

約数和(自身を除く): 34753230484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 197, 394, 591, 788, 1182, 1379, 2364, 2758, 4137, 5516, 6343, 8274, 12686, 16548, 19029, 25372, 38058, 38809, 44401, 76116, 77618, 88802, 116427, 133203, 155236, 177604, 232854, 266406, 271663, 465708, 532812, 543326, 814989, 1086652, 1249571, 1629978, 2499142, 3259956, 3748713, 4998284, 7497426, 8746997, 14994852, 17493994, 26240991, 34987988, 52481982, 104963964, 246165487, 492330974, 738496461, 984661948, 1476992922, 1723158409, 2953985844, 3446316818, 5169475227, 6892633636, 10338950454, 20677900908]

約数ペア:

[(1, 20677900908), (2, 10338950454), (3, 6892633636), (4, 5169475227), (6, 3446316818), (7, 2953985844), (12, 1723158409), (14, 1476992922), (21, 984661948), (28, 738496461), (42, 492330974), (84, 246165487), (197, 104963964), (394, 52481982), (591, 34987988), (788, 26240991), (1182, 17493994), (1379, 14994852), (2364, 8746997), (2758, 7497426), (4137, 4998284), (5516, 3748713), (6343, 3259956), (8274, 2499142), (12686, 1629978), (16548, 1249571), (19029, 1086652), (25372, 814989), (38058, 543326), (38809, 532812), (44401, 465708), (76116, 271663), (77618, 266406), (88802, 232854), (116427, 177604), (133203, 155236)]