81208127

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2617}}^1$

素因数の和:2679

約数の個数: 32

約数和(自身を含む): 112594944

約数和(自身を除く): 31386817

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 1001, 2387, 2617, 2821, 4433, 18319, 28787, 31031, 34021, 81127, 201509, 238147, 374231, 567889, 892397, 1054651, 2619617, 6246779, 7382557, 11601161, 81208127]

約数ペア:

[(1, 81208127), (7, 11601161), (11, 7382557), (13, 6246779), (31, 2619617), (77, 1054651), (91, 892397), (143, 567889), (217, 374231), (341, 238147), (403, 201509), (1001, 81127), (2387, 34021), (2617, 31031), (2821, 28787), (4433, 18319)]