21670407

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3083}}^1$

素因数の和:3171

約数の個数: 24

約数和(自身を含む): 34639488

約数和(自身を除く): 12969081

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 3083, 7029, 9249, 27747, 33913, 101739, 218893, 305217, 656679, 1970037, 2407823, 7223469, 21670407]

約数ペア:

[(1, 21670407), (3, 7223469), (9, 2407823), (11, 1970037), (33, 656679), (71, 305217), (99, 218893), (213, 101739), (639, 33913), (781, 27747), (2343, 9249), (3083, 7029)]