51907219

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1704

約数の個数: 20

約数和(自身を含む): 65252096

約数和(自身を除く): 13344877

約数列:

[1, 7, 13, 49, 91, 343, 637, 1663, 2401, 4459, 11641, 21619, 31213, 81487, 151333, 570409, 1059331, 3992863, 7415317, 51907219]

約数ペア:

[(1, 51907219), (7, 7415317), (13, 3992863), (49, 1059331), (91, 570409), (343, 151333), (637, 81487), (1663, 31213), (2401, 21619), (4459, 11641)]