256977259

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{9787}}^1$

素因数の和:9847

約数の個数: 24

約数和(自身を含む): 333261824

約数和(自身を除く): 76284565

約数列:

[1, 7, 11, 31, 77, 121, 217, 341, 847, 2387, 3751, 9787, 26257, 68509, 107657, 303397, 753599, 1184227, 2123779, 3337367, 8289589, 23361569, 36711037, 256977259]

約数ペア:

[(1, 256977259), (7, 36711037), (11, 23361569), (31, 8289589), (77, 3337367), (121, 2123779), (217, 1184227), (341, 753599), (847, 303397), (2387, 107657), (3751, 68509), (9787, 26257)]