257525757

素因数分解:

$3^3\times {\mathrm{113}}^1\times {\mathrm{84407}}^1$

素因数の和:84529

約数の個数: 16

約数和(自身を含む): 384900480

約数和(自身を除く): 127374723

約数列:

[1, 3, 9, 27, 113, 339, 1017, 3051, 84407, 253221, 759663, 2278989, 9537991, 28613973, 85841919, 257525757]

約数ペア:

[(1, 257525757), (3, 85841919), (9, 28613973), (27, 9537991), (113, 2278989), (339, 759663), (1017, 253221), (3051, 84407)]