21108006

素因数分解:

$2^1\times 3^3\times {\mathrm{390889}}^1$

素因数の和:390900

約数の個数: 16

約数和(自身を含む): 46906800

約数和(自身を除く): 25798794

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390889, 781778, 1172667, 2345334, 3518001, 7036002, 10554003, 21108006]

約数ペア:

[(1, 21108006), (2, 10554003), (3, 7036002), (6, 3518001), (9, 2345334), (18, 1172667), (27, 781778), (54, 390889)]