19327984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2161}}^1$

素因数の和:2225

約数の個数: 40

約数和(自身を含む): 41285552

約数和(自身を除く): 21957568

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2161, 2236, 4322, 4472, 8644, 8944, 17288, 28093, 34576, 56186, 92923, 112372, 185846, 224744, 371692, 449488, 743384, 1207999, 1486768, 2415998, 4831996, 9663992, 19327984]

約数ペア:

[(1, 19327984), (2, 9663992), (4, 4831996), (8, 2415998), (13, 1486768), (16, 1207999), (26, 743384), (43, 449488), (52, 371692), (86, 224744), (104, 185846), (172, 112372), (208, 92923), (344, 56186), (559, 34576), (688, 28093), (1118, 17288), (2161, 8944), (2236, 8644), (4322, 4472)]