31257213

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{10979}}^1$

素因数の和:11068

約数の個数: 16

約数和(自身を含む): 45501120

約数和(自身を除く): 14243907

約数列:

[1, 3, 13, 39, 73, 219, 949, 2847, 10979, 32937, 142727, 428181, 801467, 2404401, 10419071, 31257213]

約数ペア:

[(1, 31257213), (3, 10419071), (13, 2404401), (39, 801467), (73, 428181), (219, 142727), (949, 32937), (2847, 10979)]