1921000390

素因数分解:

$2^1\times 5^1\times {\mathrm{9431}}^1\times {\mathrm{20369}}^1$

素因数の和:29807

約数の個数: 16

約数和(自身を含む): 3458337120

約数和(自身を除く): 1537336730

約数列:

[1, 2, 5, 10, 9431, 18862, 20369, 40738, 47155, 94310, 101845, 203690, 192100039, 384200078, 960500195, 1921000390]

約数ペア:

[(1, 1921000390), (2, 960500195), (5, 384200078), (10, 192100039), (9431, 203690), (18862, 101845), (20369, 94310), (40738, 47155)]