21200495

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 25937280

約数和(自身を除く): 4736785

約数列:

[1, 5, 113, 157, 239, 565, 785, 1195, 17741, 27007, 37523, 88705, 135035, 187615, 4240099, 21200495]

約数ペア:

[(1, 21200495), (5, 4240099), (113, 187615), (157, 135035), (239, 88705), (565, 37523), (785, 27007), (1195, 17741)]