208173879

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{479}}^1\times {\mathrm{1123}}^1$

素因数の和:1651

約数の個数: 24

約数和(自身を含む): 308605440

約数和(自身を除く): 100431561

約数列:

[1, 3, 9, 43, 129, 387, 479, 1123, 1437, 3369, 4311, 10107, 20597, 48289, 61791, 144867, 185373, 434601, 537917, 1613751, 4841253, 23130431, 69391293, 208173879]

約数ペア:

[(1, 208173879), (3, 69391293), (9, 23130431), (43, 4841253), (129, 1613751), (387, 537917), (479, 434601), (1123, 185373), (1437, 144867), (3369, 61791), (4311, 48289), (10107, 20597)]