18917943

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{3517}}^1$

素因数の和:3694

約数の個数: 16

約数和(自身を含む): 27693696

約数和(自身を除く): 8775753

約数列:

[1, 3, 11, 33, 163, 489, 1793, 3517, 5379, 10551, 38687, 116061, 573271, 1719813, 6305981, 18917943]

約数ペア:

[(1, 18917943), (3, 6305981), (11, 1719813), (33, 573271), (163, 116061), (489, 38687), (1793, 10551), (3517, 5379)]