128381617

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{109}}^1$

素因数の和:222

約数の個数: 36

約数和(自身を含む): 166167540

約数和(自身を除く): 37785923

約数列:

[1, 7, 13, 43, 49, 91, 109, 301, 559, 637, 763, 1417, 1849, 2107, 3913, 4687, 5341, 9919, 12943, 24037, 27391, 32809, 60931, 69433, 90601, 168259, 201541, 229663, 426517, 1177813, 1410787, 2620033, 2985619, 9875509, 18340231, 128381617]

約数ペア:

[(1, 128381617), (7, 18340231), (13, 9875509), (43, 2985619), (49, 2620033), (91, 1410787), (109, 1177813), (301, 426517), (559, 229663), (637, 201541), (763, 168259), (1417, 90601), (1849, 69433), (2107, 60931), (3913, 32809), (4687, 27391), (5341, 24037), (9919, 12943)]