20889885

素因数分解:

$3^1\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1811}}^1$

素因数の和:2588

約数の個数: 16

約数和(自身を含む): 33485760

約数和(自身を除く): 12595875

約数列:

[1, 3, 5, 15, 769, 1811, 2307, 3845, 5433, 9055, 11535, 27165, 1392659, 4177977, 6963295, 20889885]

約数ペア:

[(1, 20889885), (3, 6963295), (5, 4177977), (15, 1392659), (769, 27165), (1811, 11535), (2307, 9055), (3845, 5433)]