51506217

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{19013}}^1$

素因数の和:19069

約数の個数: 24

約数和(自身を含む): 87008064

約数和(自身を除く): 35501847

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 19013, 57039, 133091, 171117, 399273, 817559, 1197819, 2452677, 5722913, 7358031, 17168739, 51506217]

約数ペア:

[(1, 51506217), (3, 17168739), (7, 7358031), (9, 5722913), (21, 2452677), (43, 1197819), (63, 817559), (129, 399273), (301, 171117), (387, 133091), (903, 57039), (2709, 19013)]