16618689

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{1031}}^1$

素因数の和:1242

約数の個数: 20

約数和(自身を含む): 24974400

約数和(自身を除く): 8355711

約数列:

[1, 3, 9, 27, 81, 199, 597, 1031, 1791, 3093, 5373, 9279, 16119, 27837, 83511, 205169, 615507, 1846521, 5539563, 16618689]

約数ペア:

[(1, 16618689), (3, 5539563), (9, 1846521), (27, 615507), (81, 205169), (199, 83511), (597, 27837), (1031, 16119), (1791, 9279), (3093, 5373)]