21377210

素因数分解:

$2^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{4937}}^1$

素因数の和:5377

約数の個数: 16

約数和(自身を含む): 38575656

約数和(自身を除く): 17198446

約数列:

[1, 2, 5, 10, 433, 866, 2165, 4330, 4937, 9874, 24685, 49370, 2137721, 4275442, 10688605, 21377210]

約数ペア:

[(1, 21377210), (2, 10688605), (5, 4275442), (10, 2137721), (433, 49370), (866, 24685), (2165, 9874), (4330, 4937)]