21990959919

素因数分解:

$3^3\times {\mathrm{97}}^1\times {\mathrm{277}}^1\times {\mathrm{30313}}^1$

素因数の和:30696

約数の個数: 32

約数和(自身を含む): 33034984640

約数和(自身を除く): 11044024721

約数列:

[1, 3, 9, 27, 97, 277, 291, 831, 873, 2493, 2619, 7479, 26869, 30313, 80607, 90939, 241821, 272817, 725463, 818451, 2940361, 8396701, 8821083, 25190103, 26463249, 75570309, 79389747, 226710927, 814479997, 2443439991, 7330319973, 21990959919]

約数ペア:

[(1, 21990959919), (3, 7330319973), (9, 2443439991), (27, 814479997), (97, 226710927), (277, 79389747), (291, 75570309), (831, 26463249), (873, 25190103), (2493, 8821083), (2619, 8396701), (7479, 2940361), (26869, 818451), (30313, 725463), (80607, 272817), (90939, 241821)]