20428236

素因数分解:

$2^2\times 3^2\times {\mathrm{567451}}^1$

素因数の和:567461

約数の個数: 18

約数和(自身を含む): 51638132

約数和(自身を除く): 31209896

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 567451, 1134902, 1702353, 2269804, 3404706, 5107059, 6809412, 10214118, 20428236]

約数ペア:

[(1, 20428236), (2, 10214118), (3, 6809412), (4, 5107059), (6, 3404706), (9, 2269804), (12, 1702353), (18, 1134902), (36, 567451)]