20499578

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 16272262

約数列:

[1, 2, 11, 22, 23, 29, 46, 58, 121, 127, 242, 253, 254, 319, 506, 638, 667, 1334, 1397, 2783, 2794, 2921, 3509, 3683, 5566, 5842, 7018, 7337, 7366, 14674, 15367, 30734, 32131, 40513, 64262, 80707, 81026, 84709, 161414, 169418, 353441, 445643, 706882, 891286, 931799, 1863598, 10249789, 20499578]

約数ペア:

[(1, 20499578), (2, 10249789), (11, 1863598), (22, 931799), (23, 891286), (29, 706882), (46, 445643), (58, 353441), (121, 169418), (127, 161414), (242, 84709), (253, 81026), (254, 80707), (319, 64262), (506, 40513), (638, 32131), (667, 30734), (1334, 15367), (1397, 14674), (2783, 7366), (2794, 7337), (2921, 7018), (3509, 5842), (3683, 5566)]