20651666

素因数分解:

$2^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{9769}}^1$

素因数の和:9929

約数の個数: 16

約数和(自身を含む): 35640960

約数和(自身を除く): 14989294

約数列:

[1, 2, 7, 14, 151, 302, 1057, 2114, 9769, 19538, 68383, 136766, 1475119, 2950238, 10325833, 20651666]

約数ペア:

[(1, 20651666), (2, 10325833), (7, 2950238), (14, 1475119), (151, 136766), (302, 68383), (1057, 19538), (2114, 9769)]