42257781

素因数分解:

$3^4\times {\mathrm{401}}^1\times {\mathrm{1301}}^1$

素因数の和:1714

約数の個数: 20

約数和(自身を含む): 63331884

約数和(自身を除く): 21074103

約数列:

[1, 3, 9, 27, 81, 401, 1203, 1301, 3609, 3903, 10827, 11709, 32481, 35127, 105381, 521701, 1565103, 4695309, 14085927, 42257781]

約数ペア:

[(1, 42257781), (3, 14085927), (9, 4695309), (27, 1565103), (81, 521701), (401, 105381), (1203, 35127), (1301, 32481), (3609, 11709), (3903, 10827)]