77777901

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{10789}}^1$

素因数の和:10890

約数の個数: 20

約数和(自身を含む): 117503100

約数和(自身を除く): 39725199

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 10789, 32367, 97101, 291303, 873909, 960221, 2880663, 8641989, 25925967, 77777901]

約数ペア:

[(1, 77777901), (3, 25925967), (9, 8641989), (27, 2880663), (81, 960221), (89, 873909), (267, 291303), (801, 97101), (2403, 32367), (7209, 10789)]