28016667

素因数分解:

$3^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1109}}^1$

素因数の和:1523

約数の個数: 24

約数和(自身を含む): 46406880

約数和(自身を除く): 18390213

約数列:

[1, 3, 7, 9, 21, 63, 401, 1109, 1203, 2807, 3327, 3609, 7763, 8421, 9981, 23289, 25263, 69867, 444709, 1334127, 3112963, 4002381, 9338889, 28016667]

約数ペア:

[(1, 28016667), (3, 9338889), (7, 4002381), (9, 3112963), (21, 1334127), (63, 444709), (401, 69867), (1109, 25263), (1203, 23289), (2807, 9981), (3327, 8421), (3609, 7763)]