20784564

素因数分解:

$2^2\times 3^2\times {\mathrm{577349}}^1$

素因数の和:577359

約数の個数: 18

約数和(自身を含む): 52538850

約数和(自身を除く): 31754286

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 577349, 1154698, 1732047, 2309396, 3464094, 5196141, 6928188, 10392282, 20784564]

約数ペア:

[(1, 20784564), (2, 10392282), (3, 6928188), (4, 5196141), (6, 3464094), (9, 2309396), (12, 1732047), (18, 1154698), (36, 577349)]