19718906

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{1031}}^1$

素因数の和:1237

約数の個数: 16

約数和(自身を含む): 30241728

約数和(自身を除く): 10522822

約数列:

[1, 2, 73, 131, 146, 262, 1031, 2062, 9563, 19126, 75263, 135061, 150526, 270122, 9859453, 19718906]

約数ペア:

[(1, 19718906), (2, 9859453), (73, 270122), (131, 150526), (146, 135061), (262, 75263), (1031, 19126), (2062, 9563)]