20961880

素因数分解:

$2^3\times 5^1\times {\mathrm{524047}}^1$

素因数の和:524058

約数の個数: 16

約数和(自身を含む): 47164320

約数和(自身を除く): 26202440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 524047, 1048094, 2096188, 2620235, 4192376, 5240470, 10480940, 20961880]

約数ペア:

[(1, 20961880), (2, 10480940), (4, 5240470), (5, 4192376), (8, 2620235), (10, 2096188), (20, 1048094), (40, 524047)]