21689049

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{677}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 29615040

約数和(自身を除く): 7925991

約数列:

[1, 3, 59, 177, 181, 543, 677, 2031, 10679, 32037, 39943, 119829, 122537, 367611, 7229683, 21689049]

約数ペア:

[(1, 21689049), (3, 7229683), (59, 367611), (177, 122537), (181, 119829), (543, 39943), (677, 32037), (2031, 10679)]