20621710

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18919}}^1$

素因数の和:19035

約数の個数: 16

約数和(自身を含む): 37461600

約数和(自身を除く): 16839890

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18919, 37838, 94595, 189190, 2062171, 4124342, 10310855, 20621710]

約数ペア:

[(1, 20621710), (2, 10310855), (5, 4124342), (10, 2062171), (109, 189190), (218, 94595), (545, 37838), (1090, 18919)]