19958001

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9227}}^1$

素因数の和:9340

約数の個数: 16

約数和(自身を含む): 30710784

約数和(自身を除く): 10752783

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 9227, 27681, 64589, 193767, 950381, 2851143, 6652667, 19958001]

約数ペア:

[(1, 19958001), (3, 6652667), (7, 2851143), (21, 950381), (103, 193767), (309, 64589), (721, 27681), (2163, 9227)]