261569281778

素因数分解:

$2^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{42174989}}^1$

素因数の和:42175441

約数の個数: 16

約数和(自身を含む): 449416693440

約数和(自身を除く): 187847411662

約数列:

[1, 2, 7, 14, 443, 886, 3101, 6202, 42174989, 84349978, 295224923, 590449846, 18683520127, 37367040254, 130784640889, 261569281778]

約数ペア:

[(1, 261569281778), (2, 130784640889), (7, 37367040254), (14, 18683520127), (443, 590449846), (886, 295224923), (3101, 84349978), (6202, 42174989)]