19910613

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{2143}}^1$

素因数の和:2328

約数の個数: 16

約数和(自身を含む): 28129280

約数和(自身を除く): 8218667

約数列:

[1, 3, 19, 57, 163, 489, 2143, 3097, 6429, 9291, 40717, 122151, 349309, 1047927, 6636871, 19910613]

約数ペア:

[(1, 19910613), (3, 6636871), (19, 1047927), (57, 349309), (163, 122151), (489, 40717), (2143, 9291), (3097, 6429)]