20211356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41759}}^1$

素因数の和:41785

約数の個数: 18

約数和(自身を含む): 38878560

約数和(自身を除く): 18667204

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41759, 83518, 167036, 459349, 918698, 1837396, 5052839, 10105678, 20211356]

約数ペア:

[(1, 20211356), (2, 10105678), (4, 5052839), (11, 1837396), (22, 918698), (44, 459349), (121, 167036), (242, 83518), (484, 41759)]