21114160

素因数分解:

$2^4\times 5^1\times {\mathrm{263927}}^1$

素因数の和:263940

約数の個数: 20

約数和(自身を含む): 49090608

約数和(自身を除く): 27976448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263927, 527854, 1055708, 1319635, 2111416, 2639270, 4222832, 5278540, 10557080, 21114160]

約数ペア:

[(1, 21114160), (2, 10557080), (4, 5278540), (5, 4222832), (8, 2639270), (10, 2111416), (16, 1319635), (20, 1055708), (40, 527854), (80, 263927)]