256975929

素因数分解:

$3^3\times 7^1\times {\mathrm{1359661}}^1$

素因数の和:1359677

約数の個数: 16

約数和(自身を含む): 435091840

約数和(自身を除く): 178115911

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1359661, 4078983, 9517627, 12236949, 28552881, 36710847, 85658643, 256975929]

約数ペア:

[(1, 256975929), (3, 85658643), (7, 36710847), (9, 28552881), (21, 12236949), (27, 9517627), (63, 4078983), (189, 1359661)]