16543820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19237}}^1$

素因数の和:19289

約数の個数: 24

約数和(自身を含む): 35551824

約数和(自身を除く): 19008004

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 19237, 38474, 76948, 96185, 192370, 384740, 827191, 1654382, 3308764, 4135955, 8271910, 16543820]

約数ペア:

[(1, 16543820), (2, 8271910), (4, 4135955), (5, 3308764), (10, 1654382), (20, 827191), (43, 384740), (86, 192370), (172, 96185), (215, 76948), (430, 38474), (860, 19237)]