21299930

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{45319}}^1$

素因数の和:45373

約数の個数: 16

約数和(自身を含む): 39156480

約数和(自身を除く): 17856550

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 45319, 90638, 226595, 453190, 2129993, 4259986, 10649965, 21299930]

約数ペア:

[(1, 21299930), (2, 10649965), (5, 4259986), (10, 2129993), (47, 453190), (94, 226595), (235, 90638), (470, 45319)]