209905421

素因数分解:

${\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1\times {\mathrm{643}}^1$

素因数の和:1216

約数の個数: 16

約数和(自身を含む): 233694720

約数和(自身を除く): 23789299

約数列:

[1, 11, 59, 503, 643, 649, 5533, 7073, 29677, 37937, 323429, 326447, 417307, 3557719, 19082311, 209905421]

約数ペア:

[(1, 209905421), (11, 19082311), (59, 3557719), (503, 417307), (643, 326447), (649, 323429), (5533, 37937), (7073, 29677)]