21376540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22741}}^1$

素因数の和:22797

約数の個数: 24

約数和(自身を含む): 45847872

約数和(自身を除く): 24471332

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22741, 45482, 90964, 113705, 227410, 454820, 1068827, 2137654, 4275308, 5344135, 10688270, 21376540]

約数ペア:

[(1, 21376540), (2, 10688270), (4, 5344135), (5, 4275308), (10, 2137654), (20, 1068827), (47, 454820), (94, 227410), (188, 113705), (235, 90964), (470, 45482), (940, 22741)]