20802240909

素因数分解:

$3^4\times {\mathrm{256817789}}^1$

素因数の和:256817801

約数の個数: 10

約数和(自身を含む): 31074952590

約数和(自身を除く): 10272711681

約数列:

[1, 3, 9, 27, 81, 256817789, 770453367, 2311360101, 6934080303, 20802240909]

約数ペア:

[(1, 20802240909), (3, 6934080303), (9, 2311360101), (27, 770453367), (81, 256817789)]