19723660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89653}}^1$

素因数の和:89673

約数の個数: 24

約数和(自身を含む): 45185616

約数和(自身を除く): 25461956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89653, 179306, 358612, 448265, 896530, 986183, 1793060, 1972366, 3944732, 4930915, 9861830, 19723660]

約数ペア:

[(1, 19723660), (2, 9861830), (4, 4930915), (5, 3944732), (10, 1972366), (11, 1793060), (20, 986183), (22, 896530), (44, 448265), (55, 358612), (110, 179306), (220, 89653)]