18880471

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:414

約数の個数: 16

約数和(自身を含む): 20684160

約数和(自身を除く): 1803689

約数列:

[1, 19, 37, 107, 251, 703, 2033, 3959, 4769, 9287, 26857, 75221, 176453, 510283, 993709, 18880471]

約数ペア:

[(1, 18880471), (19, 993709), (37, 510283), (107, 176453), (251, 75221), (703, 26857), (2033, 9287), (3959, 4769)]