2557221

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{887}}^1$

素因数の和:952

約数の個数: 12

約数和(自身を含む): 3527136

約数和(自身を除く): 969915

約数列:

[1, 3, 31, 93, 887, 961, 2661, 2883, 27497, 82491, 852407, 2557221]

約数ペア:

[(1, 2557221), (3, 852407), (31, 82491), (93, 27497), (887, 2883), (961, 2661)]