257156728587

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{288615857}}^1$

素因数の和:288615880

約数の個数: 20

約数和(自身を含む): 419070225816

約数和(自身を除く): 161913497229

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 288615857, 865847571, 2597542713, 3174774427, 7792628139, 9524323281, 23377884417, 28572969843, 85718909529, 257156728587]

約数ペア:

[(1, 257156728587), (3, 85718909529), (9, 28572969843), (11, 23377884417), (27, 9524323281), (33, 7792628139), (81, 3174774427), (99, 2597542713), (297, 865847571), (891, 288615857)]