81248781

素因数分解:

$3^1\times {\mathrm{37}}^2\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 113280384

約数和(自身を除く): 32031603

約数列:

[1, 3, 37, 73, 111, 219, 271, 813, 1369, 2701, 4107, 8103, 10027, 19783, 30081, 59349, 99937, 299811, 370999, 731971, 1112997, 2195913, 27082927, 81248781]

約数ペア:

[(1, 81248781), (3, 27082927), (37, 2195913), (73, 1112997), (111, 731971), (219, 370999), (271, 299811), (813, 99937), (1369, 59349), (2701, 30081), (4107, 19783), (8103, 10027)]