20509818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{488329}}^1$

素因数の和:488341

約数の個数: 16

約数和(自身を含む): 46879680

約数和(自身を除く): 26369862

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 488329, 976658, 1464987, 2929974, 3418303, 6836606, 10254909, 20509818]

約数ペア:

[(1, 20509818), (2, 10254909), (3, 6836606), (6, 3418303), (7, 2929974), (14, 1464987), (21, 976658), (42, 488329)]