20687944

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63073}}^1$

素因数の和:63120

約数の個数: 16

約数和(自身を含む): 39736620

約数和(自身を除く): 19048676

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63073, 126146, 252292, 504584, 2585993, 5171986, 10343972, 20687944]

約数ペア:

[(1, 20687944), (2, 10343972), (4, 5171986), (8, 2585993), (41, 504584), (82, 252292), (164, 126146), (328, 63073)]