18966561

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{743}}^1$

素因数の和:940

約数の個数: 16

約数和(自身を含む): 25903104

約数和(自身を除く): 6936543

約数列:

[1, 3, 67, 127, 201, 381, 743, 2229, 8509, 25527, 49781, 94361, 149343, 283083, 6322187, 18966561]

約数ペア:

[(1, 18966561), (3, 6322187), (67, 283083), (127, 149343), (201, 94361), (381, 49781), (743, 25527), (2229, 8509)]