20993391

素因数分解:

$3^3\times {\mathrm{641}}^1\times {\mathrm{1213}}^1$

素因数の和:1863

約数の個数: 16

約数和(自身を含む): 31175520

約数和(自身を除く): 10182129

約数列:

[1, 3, 9, 27, 641, 1213, 1923, 3639, 5769, 10917, 17307, 32751, 777533, 2332599, 6997797, 20993391]

約数ペア:

[(1, 20993391), (3, 6997797), (9, 2332599), (27, 777533), (641, 32751), (1213, 17307), (1923, 10917), (3639, 5769)]