18117491

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2617}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 22116864

約数和(自身を除く): 3999373

約数列:

[1, 7, 23, 43, 161, 301, 989, 2617, 6923, 18319, 60191, 112531, 421337, 787717, 2588213, 18117491]

約数ペア:

[(1, 18117491), (7, 2588213), (23, 787717), (43, 421337), (161, 112531), (301, 60191), (989, 18319), (2617, 6923)]