21306834

素因数分解:

$2^1\times 3^3\times {\mathrm{394571}}^1$

素因数の和:394582

約数の個数: 16

約数和(自身を含む): 47348640

約数和(自身を除く): 26041806

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394571, 789142, 1183713, 2367426, 3551139, 7102278, 10653417, 21306834]

約数ペア:

[(1, 21306834), (2, 10653417), (3, 7102278), (6, 3551139), (9, 2367426), (18, 1183713), (27, 789142), (54, 394571)]