256721139

素因数分解:

$3^2\times {\mathrm{2971}}^1\times {\mathrm{9601}}^1$

素因数の和:12578

約数の個数: 12

約数和(自身を含む): 370982872

約数和(自身を除く): 114261733

約数列:

[1, 3, 9, 2971, 8913, 9601, 26739, 28803, 86409, 28524571, 85573713, 256721139]

約数ペア:

[(1, 256721139), (3, 85573713), (9, 28524571), (2971, 86409), (8913, 28803), (9601, 26739)]