21171267

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60317}}^1$

素因数の和:60339

約数の個数: 16

約数和(自身を含む): 33778080

約数和(自身を除く): 12606813

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60317, 180951, 542853, 784121, 1628559, 2352363, 7057089, 21171267]

約数ペア:

[(1, 21171267), (3, 7057089), (9, 2352363), (13, 1628559), (27, 784121), (39, 542853), (117, 180951), (351, 60317)]