20976585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{199777}}^1$

素因数の和:199792

約数の個数: 16

約数和(自身を含む): 38357376

約数和(自身を除く): 17380791

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 199777, 599331, 998885, 1398439, 2996655, 4195317, 6992195, 20976585]

約数ペア:

[(1, 20976585), (3, 6992195), (5, 4195317), (7, 2996655), (15, 1398439), (21, 998885), (35, 599331), (105, 199777)]