20638233

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1103}}^1$

素因数の和:1136

約数の個数: 48

約数和(自身を含む): 38578176

約数和(自身を除く): 17939943

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 243, 297, 567, 693, 891, 1103, 1701, 2079, 2673, 3309, 6237, 7721, 9927, 12133, 18711, 23163, 29781, 36399, 69489, 84931, 89343, 109197, 208467, 254793, 268029, 327591, 625401, 764379, 982773, 1876203, 2293137, 2948319, 6879411, 20638233]

約数ペア:

[(1, 20638233), (3, 6879411), (7, 2948319), (9, 2293137), (11, 1876203), (21, 982773), (27, 764379), (33, 625401), (63, 327591), (77, 268029), (81, 254793), (99, 208467), (189, 109197), (231, 89343), (243, 84931), (297, 69489), (567, 36399), (693, 29781), (891, 23163), (1103, 18711), (1701, 12133), (2079, 9927), (2673, 7721), (3309, 6237)]