21830627

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{797}}^1$

素因数の和:867

約数の個数: 24

約数和(自身を含む): 28019376

約数和(自身を除く): 6188749

約数列:

[1, 7, 13, 43, 49, 91, 301, 559, 637, 797, 2107, 3913, 5579, 10361, 27391, 34271, 39053, 72527, 239897, 445523, 507689, 1679279, 3118661, 21830627]

約数ペア:

[(1, 21830627), (7, 3118661), (13, 1679279), (43, 507689), (49, 445523), (91, 239897), (301, 72527), (559, 39053), (637, 34271), (797, 27391), (2107, 10361), (3913, 5579)]