20578026

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 50181120

約数和(自身を除く): 29603094

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 107, 114, 133, 214, 241, 266, 321, 399, 482, 642, 723, 749, 798, 1446, 1498, 1687, 2033, 2247, 3374, 4066, 4494, 4579, 5061, 6099, 9158, 10122, 12198, 13737, 14231, 25787, 27474, 28462, 32053, 42693, 51574, 64106, 77361, 85386, 96159, 154722, 180509, 192318, 361018, 489953, 541527, 979906, 1083054, 1469859, 2939718, 3429671, 6859342, 10289013, 20578026]

約数ペア:

[(1, 20578026), (2, 10289013), (3, 6859342), (6, 3429671), (7, 2939718), (14, 1469859), (19, 1083054), (21, 979906), (38, 541527), (42, 489953), (57, 361018), (107, 192318), (114, 180509), (133, 154722), (214, 96159), (241, 85386), (266, 77361), (321, 64106), (399, 51574), (482, 42693), (642, 32053), (723, 28462), (749, 27474), (798, 25787), (1446, 14231), (1498, 13737), (1687, 12198), (2033, 10122), (2247, 9158), (3374, 6099), (4066, 5061), (4494, 4579)]