21351495

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129403}}^1$

素因数の和:129422

約数の個数: 16

約数和(自身を含む): 37268352

約数和(自身を除く): 15916857

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 129403, 388209, 647015, 1423433, 1941045, 4270299, 7117165, 21351495]

約数ペア:

[(1, 21351495), (3, 7117165), (5, 4270299), (11, 1941045), (15, 1423433), (33, 647015), (55, 388209), (165, 129403)]