20579643

素因数分解:

$3^3\times 7^1\times {\mathrm{108887}}^1$

素因数の和:108903

約数の個数: 16

約数和(自身を含む): 34844160

約数和(自身を除く): 14264517

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 108887, 326661, 762209, 979983, 2286627, 2939949, 6859881, 20579643]

約数ペア:

[(1, 20579643), (3, 6859881), (7, 2939949), (9, 2286627), (21, 979983), (27, 762209), (63, 326661), (189, 108887)]