21161883

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{829}}^1$

素因数の和:1026

約数の個数: 16

約数和(自身を含む): 28897280

約数和(自身を除く): 7735397

約数列:

[1, 3, 67, 127, 201, 381, 829, 2487, 8509, 25527, 55543, 105283, 166629, 315849, 7053961, 21161883]

約数ペア:

[(1, 21161883), (3, 7053961), (67, 315849), (127, 166629), (201, 105283), (381, 55543), (829, 25527), (2487, 8509)]