20019335

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18451}}^1$

素因数の和:18494

約数の個数: 16

約数和(自身を含む): 28342272

約数和(自身を除く): 8322937

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18451, 92255, 129157, 571981, 645785, 2859905, 4003867, 20019335]

約数ペア:

[(1, 20019335), (5, 4003867), (7, 2859905), (31, 645785), (35, 571981), (155, 129157), (217, 92255), (1085, 18451)]