21275740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28751}}^1$

素因数の和:28797

約数の個数: 24

約数和(自身を含む): 45888192

約数和(自身を除く): 24612452

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28751, 57502, 115004, 143755, 287510, 575020, 1063787, 2127574, 4255148, 5318935, 10637870, 21275740]

約数ペア:

[(1, 21275740), (2, 10637870), (4, 5318935), (5, 4255148), (10, 2127574), (20, 1063787), (37, 575020), (74, 287510), (148, 143755), (185, 115004), (370, 57502), (740, 28751)]