18949707

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1759}}^1$

素因数の和:1797

約数の個数: 40

約数和(自身を含む): 34073600

約数和(自身を除く): 15123893

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 1759, 3591, 5277, 10773, 12313, 15831, 33421, 36939, 47493, 100263, 110817, 142479, 233947, 300789, 332451, 701841, 902367, 997353, 2105523, 2707101, 6316569, 18949707]

約数ペア:

[(1, 18949707), (3, 6316569), (7, 2707101), (9, 2105523), (19, 997353), (21, 902367), (27, 701841), (57, 332451), (63, 300789), (81, 233947), (133, 142479), (171, 110817), (189, 100263), (399, 47493), (513, 36939), (567, 33421), (1197, 15831), (1539, 12313), (1759, 10773), (3591, 5277)]