18417021

素因数分解:

$3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{3121}}^1$

素因数の和:3412

約数の個数: 16

約数和(自身を含む): 28172928

約数和(自身を除く): 9755907

約数列:

[1, 3, 7, 21, 281, 843, 1967, 3121, 5901, 9363, 21847, 65541, 877001, 2631003, 6139007, 18417021]

約数ペア:

[(1, 18417021), (3, 6139007), (7, 2631003), (21, 877001), (281, 65541), (843, 21847), (1967, 9363), (3121, 5901)]