20565448

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{7121}}^1$

素因数の和:7165

約数の個数: 24

約数和(自身を含む): 40702230

約数和(自身を除く): 20136782

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 7121, 14242, 28484, 56968, 135299, 270598, 541196, 1082392, 2570681, 5141362, 10282724, 20565448]

約数ペア:

[(1, 20565448), (2, 10282724), (4, 5141362), (8, 2570681), (19, 1082392), (38, 541196), (76, 270598), (152, 135299), (361, 56968), (722, 28484), (1444, 14242), (2888, 7121)]