18941167

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1657}}^1$

素因数の和:1758

約数の個数: 16

約数和(自身を含む): 22920192

約数和(自身を除く): 3979025

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1657, 11431, 11599, 38111, 117647, 266777, 823529, 2705881, 18941167]

約数ペア:

[(1, 18941167), (7, 2705881), (23, 823529), (71, 266777), (161, 117647), (497, 38111), (1633, 11599), (1657, 11431)]