257360061

素因数分解:

$3^1\times 7^1\times {\mathrm{1721}}^1\times {\mathrm{7121}}^1$

素因数の和:8852

約数の個数: 16

約数和(自身を含む): 392450688

約数和(自身を除く): 135090627

約数列:

[1, 3, 7, 21, 1721, 5163, 7121, 12047, 21363, 36141, 49847, 149541, 12255241, 36765723, 85786687, 257360061]

約数ペア:

[(1, 257360061), (3, 85786687), (7, 36765723), (21, 12255241), (1721, 149541), (5163, 49847), (7121, 36141), (12047, 21363)]