18734639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{467}}^1\times {\mathrm{521}}^1$

素因数の和:1006

約数の個数: 16

約数和(自身を含む): 23452416

約数和(自身を除く): 4717777

約数列:

[1, 7, 11, 77, 467, 521, 3269, 3647, 5137, 5731, 35959, 40117, 243307, 1703149, 2676377, 18734639]

約数ペア:

[(1, 18734639), (7, 2676377), (11, 1703149), (77, 243307), (467, 40117), (521, 35959), (3269, 5731), (3647, 5137)]