8720289

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 13303680

約数和(自身を除く): 4583391

約数列:

[1, 3, 9, 23, 69, 103, 207, 309, 409, 927, 1227, 2369, 3681, 7107, 9407, 21321, 28221, 42127, 84663, 126381, 379143, 968921, 2906763, 8720289]

約数ペア:

[(1, 8720289), (3, 2906763), (9, 968921), (23, 379143), (69, 126381), (103, 84663), (207, 42127), (309, 28221), (409, 21321), (927, 9407), (1227, 7107), (2369, 3681)]