21137101

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:444

約数の個数: 16

約数和(自身を含む): 23146560

約数和(自身を除く): 2009459

約数列:

[1, 19, 37, 107, 281, 703, 2033, 3959, 5339, 10397, 30067, 75221, 197543, 571273, 1112479, 21137101]

約数ペア:

[(1, 21137101), (19, 1112479), (37, 571273), (107, 197543), (281, 75221), (703, 30067), (2033, 10397), (3959, 5339)]