990394922

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{421}}^1\times {\mathrm{9721}}^1$

素因数の和:10166

約数の個数: 24

約数和(自身を含む): 1636970916

約数和(自身を除く): 646575994

約数列:

[1, 2, 11, 22, 121, 242, 421, 842, 4631, 9262, 9721, 19442, 50941, 101882, 106931, 213862, 1176241, 2352482, 4092541, 8185082, 45017951, 90035902, 495197461, 990394922]

約数ペア:

[(1, 990394922), (2, 495197461), (11, 90035902), (22, 45017951), (121, 8185082), (242, 4092541), (421, 2352482), (842, 1176241), (4631, 213862), (9262, 106931), (9721, 101882), (19442, 50941)]