16854440

素因数分解:

$2^3\times 5^1\times {\mathrm{421361}}^1$

素因数の和:421372

約数の個数: 16

約数和(自身を含む): 37922580

約数和(自身を除く): 21068140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421361, 842722, 1685444, 2106805, 3370888, 4213610, 8427220, 16854440]

約数ペア:

[(1, 16854440), (2, 8427220), (4, 4213610), (5, 3370888), (8, 2106805), (10, 1685444), (20, 842722), (40, 421361)]