20308239

素因数分解:

$3^5\times 7^1\times {\mathrm{11939}}^1$

素因数の和:11961

約数の個数: 24

約数和(自身を含む): 34769280

約数和(自身を除く): 14461041

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 11939, 35817, 83573, 107451, 250719, 322353, 752157, 967059, 2256471, 2901177, 6769413, 20308239]

約数ペア:

[(1, 20308239), (3, 6769413), (7, 2901177), (9, 2256471), (21, 967059), (27, 752157), (63, 322353), (81, 250719), (189, 107451), (243, 83573), (567, 35817), (1701, 11939)]