20889780471

素因数分解:

$3^3\times 7^1\times {\mathrm{110527939}}^1$

素因数の和:110527955

約数の個数: 16

約数和(自身を含む): 35368940800

約数和(自身を除く): 14479160329

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 110527939, 331583817, 773695573, 994751451, 2321086719, 2984254353, 6963260157, 20889780471]

約数ペア:

[(1, 20889780471), (3, 6963260157), (7, 2984254353), (9, 2321086719), (21, 994751451), (27, 773695573), (63, 331583817), (189, 110527939)]