81243393

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31973}}^1$

素因数の和:32005

約数の個数: 24

約数和(自身を含む): 136081344

約数和(自身を除く): 54837951

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 31973, 95919, 223811, 351703, 671433, 1055109, 2461921, 3868733, 7385763, 11606199, 27081131, 81243393]

約数ペア:

[(1, 81243393), (3, 27081131), (7, 11606199), (11, 7385763), (21, 3868733), (33, 2461921), (77, 1055109), (121, 671433), (231, 351703), (363, 223811), (847, 95919), (2541, 31973)]