20355489

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9791}}^1$

素因数の和:9818

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 17245791

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 9791, 29373, 68537, 88119, 107701, 205611, 264357, 323103, 616833, 753907, 969309, 1850499, 2261721, 2907927, 6785163, 20355489]

約数ペア:

[(1, 20355489), (3, 6785163), (7, 2907927), (9, 2261721), (11, 1850499), (21, 969309), (27, 753907), (33, 616833), (63, 323103), (77, 264357), (99, 205611), (189, 107701), (231, 88119), (297, 68537), (693, 29373), (2079, 9791)]