21020846

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12409}}^1$

素因数の和:12440

約数の個数: 24

約数和(自身を含む): 39612720

約数和(自身を除く): 18591874

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12409, 24818, 86863, 136499, 173726, 272998, 955493, 1501489, 1910986, 3002978, 10510423, 21020846]

約数ペア:

[(1, 21020846), (2, 10510423), (7, 3002978), (11, 1910986), (14, 1501489), (22, 955493), (77, 272998), (121, 173726), (154, 136499), (242, 86863), (847, 24818), (1694, 12409)]