18111898

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{5413}}^1$

素因数の和:5661

約数の個数: 16

約数和(自身を含む): 31184640

約数和(自身を除く): 13072742

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 5413, 10826, 37891, 75782, 1293707, 2587414, 9055949, 18111898]

約数ペア:

[(1, 18111898), (2, 9055949), (7, 2587414), (14, 1293707), (239, 75782), (478, 37891), (1673, 10826), (3346, 5413)]