21018848864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{3571}}^1\times {\mathrm{14149}}^1$

素因数の和:17743

約数の個数: 48

約数和(自身を含む): 44579631600

約数和(自身を除く): 23560782736

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 3571, 7142, 14149, 14284, 28298, 28568, 46423, 56596, 57136, 92846, 113192, 114272, 183937, 185692, 226384, 367874, 371384, 452768, 735748, 742768, 1471496, 1485536, 2942992, 5885984, 50526079, 101052158, 202104316, 404208632, 656839027, 808417264, 1313678054, 1616834528, 2627356108, 5254712216, 10509424432, 21018848864]

約数ペア:

[(1, 21018848864), (2, 10509424432), (4, 5254712216), (8, 2627356108), (13, 1616834528), (16, 1313678054), (26, 808417264), (32, 656839027), (52, 404208632), (104, 202104316), (208, 101052158), (416, 50526079), (3571, 5885984), (7142, 2942992), (14149, 1485536), (14284, 1471496), (28298, 742768), (28568, 735748), (46423, 452768), (56596, 371384), (57136, 367874), (92846, 226384), (113192, 185692), (114272, 183937)]