21905356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45259}}^1$

素因数の和:45285

約数の個数: 18

約数和(自身を含む): 42137060

約数和(自身を除く): 20231704

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45259, 90518, 181036, 497849, 995698, 1991396, 5476339, 10952678, 21905356]

約数ペア:

[(1, 21905356), (2, 10952678), (4, 5476339), (11, 1991396), (22, 995698), (44, 497849), (121, 181036), (242, 90518), (484, 45259)]