19018881

素因数分解:

$3^6\times 7^1\times {\mathrm{3727}}^1$

素因数の和:3752

約数の個数: 28

約数和(自身を含む): 32597632

約数和(自身を除く): 13578751

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3727, 5103, 11181, 26089, 33543, 78267, 100629, 234801, 301887, 704403, 905661, 2113209, 2716983, 6339627, 19018881]

約数ペア:

[(1, 19018881), (3, 6339627), (7, 2716983), (9, 2113209), (21, 905661), (27, 704403), (63, 301887), (81, 234801), (189, 100629), (243, 78267), (567, 33543), (729, 26089), (1701, 11181), (3727, 5103)]