1620228978

素因数分解:

$2^1\times 3^2\times {\mathrm{90012721}}^1$

素因数の和:90012729

約数の個数: 12

約数和(自身を含む): 3510496158

約数和(自身を除く): 1890267180

約数列:

[1, 2, 3, 6, 9, 18, 90012721, 180025442, 270038163, 540076326, 810114489, 1620228978]

約数ペア:

[(1, 1620228978), (2, 810114489), (3, 540076326), (6, 270038163), (9, 180025442), (18, 90012721)]