21453394

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2837}}^1$

素因数の和:3057

約数の個数: 16

約数和(自身を含む): 34056000

約数和(自身を除く): 12602606

約数列:

[1, 2, 19, 38, 199, 398, 2837, 3781, 5674, 7562, 53903, 107806, 564563, 1129126, 10726697, 21453394]

約数ペア:

[(1, 21453394), (2, 10726697), (19, 1129126), (38, 564563), (199, 107806), (398, 53903), (2837, 7562), (3781, 5674)]