2008986021

素因数分解:

$3^2\times 7^1\times {\mathrm{31888667}}^1$

素因数の和:31888680

約数の個数: 12

約数和(自身を含む): 3316421472

約数和(自身を除く): 1307435451

約数列:

[1, 3, 7, 9, 21, 63, 31888667, 95666001, 223220669, 286998003, 669662007, 2008986021]

約数ペア:

[(1, 2008986021), (3, 669662007), (7, 286998003), (9, 223220669), (21, 95666001), (63, 31888667)]