19539387

素因数分解:

$3^6\times 7^2\times {\mathrm{547}}^1$

素因数の和:579

約数の個数: 42

約数和(自身を含む): 34140948

約数和(自身を除く): 14601561

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 547, 567, 729, 1323, 1641, 1701, 3829, 3969, 4923, 5103, 11487, 11907, 14769, 26803, 34461, 35721, 44307, 80409, 103383, 132921, 241227, 310149, 398763, 723681, 930447, 2171043, 2791341, 6513129, 19539387]

約数ペア:

[(1, 19539387), (3, 6513129), (7, 2791341), (9, 2171043), (21, 930447), (27, 723681), (49, 398763), (63, 310149), (81, 241227), (147, 132921), (189, 103383), (243, 80409), (441, 44307), (547, 35721), (567, 34461), (729, 26803), (1323, 14769), (1641, 11907), (1701, 11487), (3829, 5103), (3969, 4923)]