18738021

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{757}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 25808384

約数和(自身を除く): 7070363

約数列:

[1, 3, 37, 111, 223, 669, 757, 2271, 8251, 24753, 28009, 84027, 168811, 506433, 6246007, 18738021]

約数ペア:

[(1, 18738021), (3, 6246007), (37, 506433), (111, 168811), (223, 84027), (669, 28009), (757, 24753), (2271, 8251)]