18891717

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21061}}^1$

素因数の和:21100

約数の個数: 16

約数和(自身を含む): 28307328

約数和(自身を除く): 9415611

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 21061, 63183, 273793, 484403, 821379, 1453209, 6297239, 18891717]

約数ペア:

[(1, 18891717), (3, 6297239), (13, 1453209), (23, 821379), (39, 484403), (69, 273793), (299, 63183), (897, 21061)]