21230139

素因数分解:

$3^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{1933}}^1$

素因数の和:2466

約数の個数: 16

約数和(自身を含む): 32429312

約数和(自身を除く): 11199173

約数列:

[1, 3, 7, 21, 523, 1569, 1933, 3661, 5799, 10983, 13531, 40593, 1010959, 3032877, 7076713, 21230139]

約数ペア:

[(1, 21230139), (3, 7076713), (7, 3032877), (21, 1010959), (523, 40593), (1569, 13531), (1933, 10983), (3661, 5799)]