19766997

素因数分解:

$3^4\times {\mathrm{277}}^1\times {\mathrm{881}}^1$

素因数の和:1170

約数の個数: 20

約数和(自身を含む): 29668716

約数和(自身を除く): 9901719

約数列:

[1, 3, 9, 27, 81, 277, 831, 881, 2493, 2643, 7479, 7929, 22437, 23787, 71361, 244037, 732111, 2196333, 6588999, 19766997]

約数ペア:

[(1, 19766997), (3, 6588999), (9, 2196333), (27, 732111), (81, 244037), (277, 71361), (831, 23787), (881, 22437), (2493, 7929), (2643, 7479)]