31720143

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{116191}}^1$

素因数の和:116214

約数の個数: 16

約数和(自身を含む): 52054016

約数和(自身を除く): 20333873

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 116191, 348573, 813337, 1510483, 2440011, 4531449, 10573381, 31720143]

約数ペア:

[(1, 31720143), (3, 10573381), (7, 4531449), (13, 2440011), (21, 1510483), (39, 813337), (91, 348573), (273, 116191)]