18340231

素因数分解:

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

素因数の和:215

約数の個数: 24

約数和(自身を含む): 23321760

約数和(自身を除く): 4981529

約数列:

[1, 7, 13, 43, 91, 109, 301, 559, 763, 1417, 1849, 3913, 4687, 9919, 12943, 24037, 32809, 60931, 168259, 201541, 426517, 1410787, 2620033, 18340231]

約数ペア:

[(1, 18340231), (7, 2620033), (13, 1410787), (43, 426517), (91, 201541), (109, 168259), (301, 60931), (559, 32809), (763, 24037), (1417, 12943), (1849, 9919), (3913, 4687)]