21287412

素因数分解:

$2^2\times 3^2\times {\mathrm{591317}}^1$

素因数の和:591327

約数の個数: 18

約数和(自身を含む): 53809938

約数和(自身を除く): 32522526

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 591317, 1182634, 1773951, 2365268, 3547902, 5321853, 7095804, 10643706, 21287412]

約数ペア:

[(1, 21287412), (2, 10643706), (3, 7095804), (4, 5321853), (6, 3547902), (9, 2365268), (12, 1773951), (18, 1182634), (36, 591317)]