26509441

素因数分解:

$7^4\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 20

約数和(自身を含む): 31606484

約数和(自身を除く): 5097043

約数列:

[1, 7, 49, 61, 181, 343, 427, 1267, 2401, 2989, 8869, 11041, 20923, 62083, 77287, 146461, 434581, 541009, 3787063, 26509441]

約数ペア:

[(1, 26509441), (7, 3787063), (49, 541009), (61, 434581), (181, 146461), (343, 77287), (427, 62083), (1267, 20923), (2401, 11041), (2989, 8869)]