21306027

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2\times {\mathrm{167}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 30530304

約数和(自身を除く): 9224277

約数列:

[1, 3, 23, 43, 69, 129, 167, 501, 989, 1849, 2967, 3841, 5547, 7181, 11523, 21543, 42527, 127581, 165163, 308783, 495489, 926349, 7102009, 21306027]

約数ペア:

[(1, 21306027), (3, 7102009), (23, 926349), (43, 495489), (69, 308783), (129, 165163), (167, 127581), (501, 42527), (989, 21543), (1849, 11523), (2967, 7181), (3841, 5547)]