20658889701

素因数分解:

$3^8\times {\mathrm{3148741}}^1$

素因数の和:3148765

約数の個数: 18

約数和(自身を含む): 30986770022

約数和(自身を除く): 10327880321

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 6561, 3148741, 9446223, 28338669, 85016007, 255048021, 765144063, 2295432189, 6886296567, 20658889701]

約数ペア:

[(1, 20658889701), (3, 6886296567), (9, 2295432189), (27, 765144063), (81, 255048021), (243, 85016007), (729, 28338669), (2187, 9446223), (6561, 3148741)]