21497266

素因数分解:

$2^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{10169}}^1$

素因数の和:10329

約数の個数: 16

約数和(自身を含む): 37100160

約数和(自身を除く): 15602894

約数列:

[1, 2, 7, 14, 151, 302, 1057, 2114, 10169, 20338, 71183, 142366, 1535519, 3071038, 10748633, 21497266]

約数ペア:

[(1, 21497266), (2, 10748633), (7, 3071038), (14, 1535519), (151, 142366), (302, 71183), (1057, 20338), (2114, 10169)]