18173781

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{21713}}^1$

素因数の和:21753

約数の個数: 16

約数和(自身を含む): 27793920

約数和(自身を除く): 9620139

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 21713, 65139, 195417, 586251, 673103, 2019309, 6057927, 18173781]

約数ペア:

[(1, 18173781), (3, 6057927), (9, 2019309), (27, 673103), (31, 586251), (93, 195417), (279, 65139), (837, 21713)]