19721768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{13183}}^1$

素因数の和:13217

約数の個数: 32

約数和(自身を含む): 42716160

約数和(自身を除く): 22994392

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 374, 748, 1496, 13183, 26366, 52732, 105464, 145013, 224111, 290026, 448222, 580052, 896444, 1160104, 1792888, 2465221, 4930442, 9860884, 19721768]

約数ペア:

[(1, 19721768), (2, 9860884), (4, 4930442), (8, 2465221), (11, 1792888), (17, 1160104), (22, 896444), (34, 580052), (44, 448222), (68, 290026), (88, 224111), (136, 145013), (187, 105464), (374, 52732), (748, 26366), (1496, 13183)]