19664678

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{3533}}^1$

素因数の和:3580

約数の個数: 24

約数和(自身を含む): 33841584

約数和(自身を除く): 14176906

約数列:

[1, 2, 11, 22, 23, 46, 121, 242, 253, 506, 2783, 3533, 5566, 7066, 38863, 77726, 81259, 162518, 427493, 854986, 893849, 1787698, 9832339, 19664678]

約数ペア:

[(1, 19664678), (2, 9832339), (11, 1787698), (22, 893849), (23, 854986), (46, 427493), (121, 162518), (242, 81259), (253, 77726), (506, 38863), (2783, 7066), (3533, 5566)]