20427268

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4231}}^1$

素因数の和:4323

約数の個数: 24

約数和(自身を含む): 38392704

約数和(自身を除く): 17965436

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 2414, 4231, 4828, 8462, 16924, 71927, 143854, 287708, 300401, 600802, 1201604, 5106817, 10213634, 20427268]

約数ペア:

[(1, 20427268), (2, 10213634), (4, 5106817), (17, 1201604), (34, 600802), (68, 300401), (71, 287708), (142, 143854), (284, 71927), (1207, 16924), (2414, 8462), (4231, 4828)]