18943701

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7103}}^1$

素因数の和:7240

約数の個数: 16

約数和(自身を含む): 29097984

約数和(自身を除く): 10154283

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7103, 21309, 49721, 149163, 902081, 2706243, 6314567, 18943701]

約数ペア:

[(1, 18943701), (3, 6314567), (7, 2706243), (21, 902081), (127, 149163), (381, 49721), (889, 21309), (2667, 7103)]