19727356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40759}}^1$

素因数の和:40785

約数の個数: 18

約数和(自身を含む): 37947560

約数和(自身を除く): 18220204

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40759, 81518, 163036, 448349, 896698, 1793396, 4931839, 9863678, 19727356]

約数ペア:

[(1, 19727356), (2, 9863678), (4, 4931839), (11, 1793396), (22, 896698), (44, 448349), (121, 163036), (242, 81518), (484, 40759)]