21000549892

素因数分解:

$2^2\times 7^1\times {\mathrm{750019639}}^1$

素因数の和:750019650

約数の個数: 12

約数和(自身を含む): 42001099840

約数和(自身を除く): 21000549948

約数列:

[1, 2, 4, 7, 14, 28, 750019639, 1500039278, 3000078556, 5250137473, 10500274946, 21000549892]

約数ペア:

[(1, 21000549892), (2, 10500274946), (4, 5250137473), (7, 3000078556), (14, 1500039278), (28, 750019639)]