20778084

素因数分解:

$2^2\times 3^2\times {\mathrm{577169}}^1$

素因数の和:577179

約数の個数: 18

約数和(自身を含む): 52522470

約数和(自身を除く): 31744386

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 577169, 1154338, 1731507, 2308676, 3463014, 5194521, 6926028, 10389042, 20778084]

約数ペア:

[(1, 20778084), (2, 10389042), (3, 6926028), (4, 5194521), (6, 3463014), (9, 2308676), (12, 1731507), (18, 1154338), (36, 577169)]