20717006042

素因数分解:

$2^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1\times {\mathrm{80953}}^1$

素因数の和:81797

約数の個数: 16

約数和(自身を含む): 31280625600

約数和(自身を除く): 10563619558

約数列:

[1, 2, 199, 398, 643, 1286, 80953, 127957, 161906, 255914, 16109647, 32219294, 52052779, 104105558, 10358503021, 20717006042]

約数ペア:

[(1, 20717006042), (2, 10358503021), (199, 104105558), (398, 52052779), (643, 32219294), (1286, 16109647), (80953, 255914), (127957, 161906)]