21185334

素因数分解:

$2^1\times 3^3\times {\mathrm{392321}}^1$

素因数の和:392332

約数の個数: 16

約数和(自身を含む): 47078640

約数和(自身を除く): 25893306

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 392321, 784642, 1176963, 2353926, 3530889, 7061778, 10592667, 21185334]

約数ペア:

[(1, 21185334), (2, 10592667), (3, 7061778), (6, 3530889), (9, 2353926), (18, 1176963), (27, 784642), (54, 392321)]