21184578

素因数分解:

$2^1\times 3^4\times {\mathrm{130769}}^1$

素因数の和:130783

約数の個数: 20

約数和(自身を含む): 47469510

約数和(自身を除く): 26284932

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 130769, 261538, 392307, 784614, 1176921, 2353842, 3530763, 7061526, 10592289, 21184578]

約数ペア:

[(1, 21184578), (2, 10592289), (3, 7061526), (6, 3530763), (9, 2353842), (18, 1176921), (27, 784614), (54, 392307), (81, 261538), (162, 130769)]