21776740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26557}}^1$

素因数の和:26607

約数の個数: 24

約数和(自身を含む): 46848312

約数和(自身を除く): 25071572

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 26557, 53114, 106228, 132785, 265570, 531140, 1088837, 2177674, 4355348, 5444185, 10888370, 21776740]

約数ペア:

[(1, 21776740), (2, 10888370), (4, 5444185), (5, 4355348), (10, 2177674), (20, 1088837), (41, 531140), (82, 265570), (164, 132785), (205, 106228), (410, 53114), (820, 26557)]