21210426566

素因数分解:

$2^1\times 7^1\times {\mathrm{7499}}^1\times {\mathrm{202031}}^1$

素因数の和:209539

約数の個数: 16

約数和(自身を含む): 36365760000

約数和(自身を除く): 15155333434

約数列:

[1, 2, 7, 14, 7499, 14998, 52493, 104986, 202031, 404062, 1414217, 2828434, 1515030469, 3030060938, 10605213283, 21210426566]

約数ペア:

[(1, 21210426566), (2, 10605213283), (7, 3030060938), (14, 1515030469), (7499, 2828434), (14998, 1414217), (52493, 404062), (104986, 202031)]