28721693

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4099}}^1$

素因数の和:4137

約数の個数: 24

約数和(自身を含む): 39261600

約数和(自身を除く): 10539907

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 4099, 7007, 28693, 45089, 53287, 200851, 315623, 373009, 586157, 2209361, 2611063, 4103099, 28721693]

約数ペア:

[(1, 28721693), (7, 4103099), (11, 2611063), (13, 2209361), (49, 586157), (77, 373009), (91, 315623), (143, 200851), (539, 53287), (637, 45089), (1001, 28693), (4099, 7007)]