256977609

素因数分解:

$3^1\times 7^2\times {\mathrm{277}}^1\times {\mathrm{6311}}^1$

素因数の和:6605

約数の個数: 24

約数和(自身を含む): 400079808

約数和(自身を除く): 143102199

約数列:

[1, 3, 7, 21, 49, 147, 277, 831, 1939, 5817, 6311, 13573, 18933, 40719, 44177, 132531, 309239, 927717, 1748147, 5244441, 12237029, 36711087, 85659203, 256977609]

約数ペア:

[(1, 256977609), (3, 85659203), (7, 36711087), (21, 12237029), (49, 5244441), (147, 1748147), (277, 927717), (831, 309239), (1939, 132531), (5817, 44177), (6311, 40719), (13573, 18933)]