1989207

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 3189888

約数和(自身を除く): 1200681

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 283, 639, 781, 849, 2343, 2547, 3113, 7029, 9339, 20093, 28017, 60279, 180837, 221023, 663069, 1989207]

約数ペア:

[(1, 1989207), (3, 663069), (9, 221023), (11, 180837), (33, 60279), (71, 28017), (99, 20093), (213, 9339), (283, 7029), (639, 3113), (781, 2547), (849, 2343)]