21219922

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{4397}}^1$

素因数の和:4545

約数の個数: 16

約数和(自身を含む): 33776640

約数和(自身を除く): 12556718

約数列:

[1, 2, 19, 38, 127, 254, 2413, 4397, 4826, 8794, 83543, 167086, 558419, 1116838, 10609961, 21219922]

約数ペア:

[(1, 21219922), (2, 10609961), (19, 1116838), (38, 558419), (127, 167086), (254, 83543), (2413, 8794), (4397, 4826)]