19953291

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{2591}}^1$

素因数の和:2762

約数の個数: 16

約数和(自身を含む): 28366848

約数和(自身を除く): 8413557

約数列:

[1, 3, 17, 51, 151, 453, 2567, 2591, 7701, 7773, 44047, 132141, 391241, 1173723, 6651097, 19953291]

約数ペア:

[(1, 19953291), (3, 6651097), (17, 1173723), (51, 391241), (151, 132141), (453, 44047), (2567, 7773), (2591, 7701)]