209999039

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1\times {\mathrm{727}}^1$

素因数の和:1430

約数の個数: 16

約数和(自身を含む): 231329280

約数和(自身を除く): 21330241

約数列:

[1, 19, 23, 437, 661, 727, 12559, 13813, 15203, 16721, 288857, 317699, 480547, 9130393, 11052581, 209999039]

約数ペア:

[(1, 209999039), (19, 11052581), (23, 9130393), (437, 480547), (661, 317699), (727, 288857), (12559, 16721), (13813, 15203)]