20997020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95441}}^1$

素因数の和:95461

約数の個数: 24

約数和(自身を含む): 48102768

約数和(自身を除く): 27105748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95441, 190882, 381764, 477205, 954410, 1049851, 1908820, 2099702, 4199404, 5249255, 10498510, 20997020]

約数ペア:

[(1, 20997020), (2, 10498510), (4, 5249255), (5, 4199404), (10, 2099702), (11, 1908820), (20, 1049851), (22, 954410), (44, 477205), (55, 381764), (110, 190882), (220, 95441)]