20178494

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{10837}}^1$

素因数の和:10872

約数の個数: 24

約数和(自身を含む): 37065960

約数和(自身を除く): 16887466

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 10837, 21674, 75859, 151718, 205903, 411806, 531013, 1062026, 1441321, 2882642, 10089247, 20178494]

約数ペア:

[(1, 20178494), (2, 10089247), (7, 2882642), (14, 1441321), (19, 1062026), (38, 531013), (49, 411806), (98, 205903), (133, 151718), (266, 75859), (931, 21674), (1862, 10837)]