21558136

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2161}}^1$

素因数の和:2239

約数の個数: 32

約数和(自身を含む): 42807600

約数和(自身を除く): 21249464

約数列:

[1, 2, 4, 8, 29, 43, 58, 86, 116, 172, 232, 344, 1247, 2161, 2494, 4322, 4988, 8644, 9976, 17288, 62669, 92923, 125338, 185846, 250676, 371692, 501352, 743384, 2694767, 5389534, 10779068, 21558136]

約数ペア:

[(1, 21558136), (2, 10779068), (4, 5389534), (8, 2694767), (29, 743384), (43, 501352), (58, 371692), (86, 250676), (116, 185846), (172, 125338), (232, 92923), (344, 62669), (1247, 17288), (2161, 9976), (2494, 8644), (4322, 4988)]