17988229

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 21149440

約数和(自身を除く): 3161211

約数列:

[1, 7, 61, 103, 409, 427, 721, 2863, 6283, 24949, 42127, 43981, 174643, 294889, 2569747, 17988229]

約数ペア:

[(1, 17988229), (7, 2569747), (61, 294889), (103, 174643), (409, 43981), (427, 42127), (721, 24949), (2863, 6283)]