81064881

素因数分解:

$3^4\times {\mathrm{277}}^1\times {\mathrm{3613}}^1$

素因数の和:3902

約数の個数: 20

約数和(自身を含む): 121567732

約数和(自身を除く): 40502851

約数列:

[1, 3, 9, 27, 81, 277, 831, 2493, 3613, 7479, 10839, 22437, 32517, 97551, 292653, 1000801, 3002403, 9007209, 27021627, 81064881]

約数ペア:

[(1, 81064881), (3, 27021627), (9, 9007209), (27, 3002403), (81, 1000801), (277, 292653), (831, 97551), (2493, 32517), (3613, 22437), (7479, 10839)]