20886668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20639}}^1$

素因数の和:20677

約数の個数: 24

約数和(自身を含む): 41610240

約数和(自身を除く): 20723572

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20639, 41278, 82556, 227029, 454058, 474697, 908116, 949394, 1898788, 5221667, 10443334, 20886668]

約数ペア:

[(1, 20886668), (2, 10443334), (4, 5221667), (11, 1898788), (22, 949394), (23, 908116), (44, 474697), (46, 454058), (92, 227029), (253, 82556), (506, 41278), (1012, 20639)]