28240121

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1031}}^1$

素因数の和:1101

約数の個数: 24

約数和(自身を含む): 36235584

約数和(自身を除く): 7995463

約数列:

[1, 7, 13, 43, 49, 91, 301, 559, 637, 1031, 2107, 3913, 7217, 13403, 27391, 44333, 50519, 93821, 310331, 576329, 656747, 2172317, 4034303, 28240121]

約数ペア:

[(1, 28240121), (7, 4034303), (13, 2172317), (43, 656747), (49, 576329), (91, 310331), (301, 93821), (559, 50519), (637, 44333), (1031, 27391), (2107, 13403), (3913, 7217)]