209712781

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{937}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 225840384

約数和(自身を除く): 16127603

約数列:

[1, 23, 37, 263, 851, 937, 6049, 9731, 21551, 34669, 223813, 246431, 797387, 5667913, 9117947, 209712781]

約数ペア:

[(1, 209712781), (23, 9117947), (37, 5667913), (263, 797387), (851, 246431), (937, 223813), (6049, 34669), (9731, 21551)]