21027020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150193}}^1$

素因数の和:150209

約数の個数: 24

約数和(自身を含む): 50465184

約数和(自身を除く): 29438164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150193, 300386, 600772, 750965, 1051351, 1501930, 2102702, 3003860, 4205404, 5256755, 10513510, 21027020]

約数ペア:

[(1, 21027020), (2, 10513510), (4, 5256755), (5, 4205404), (7, 3003860), (10, 2102702), (14, 1501930), (20, 1051351), (28, 750965), (35, 600772), (70, 300386), (140, 150193)]