81139401

素因数分解:

$3^5\times 7^1\times {\mathrm{47701}}^1$

素因数の和:47723

約数の個数: 24

約数和(自身を含む): 138908224

約数和(自身を除く): 57768823

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 47701, 143103, 333907, 429309, 1001721, 1287927, 3005163, 3863781, 9015489, 11591343, 27046467, 81139401]

約数ペア:

[(1, 81139401), (3, 27046467), (7, 11591343), (9, 9015489), (21, 3863781), (27, 3005163), (63, 1287927), (81, 1001721), (189, 429309), (243, 333907), (567, 143103), (1701, 47701)]