18637388

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{5501}}^1$

素因数の和:5534

約数の個数: 36

約数和(自身を含む): 40978896

約数和(自身を除く): 22341508

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 5501, 11002, 22004, 38507, 60511, 77014, 121022, 154028, 242044, 423577, 665621, 847154, 1331242, 1694308, 2662484, 4659347, 9318694, 18637388]

約数ペア:

[(1, 18637388), (2, 9318694), (4, 4659347), (7, 2662484), (11, 1694308), (14, 1331242), (22, 847154), (28, 665621), (44, 423577), (77, 242044), (121, 154028), (154, 121022), (242, 77014), (308, 60511), (484, 38507), (847, 22004), (1694, 11002), (3388, 5501)]