16006005

素因数分解:

$3^4\times 5^1\times {\mathrm{39521}}^1$

素因数の和:39538

約数の個数: 20

約数和(自身を含む): 28692972

約数和(自身を除く): 12686967

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 39521, 118563, 197605, 355689, 592815, 1067067, 1778445, 3201201, 5335335, 16006005]

約数ペア:

[(1, 16006005), (3, 5335335), (5, 3201201), (9, 1778445), (15, 1067067), (27, 592815), (45, 355689), (81, 197605), (135, 118563), (405, 39521)]