28920261

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{1621}}^1$

素因数の和:1956

約数の個数: 16

約数和(自身を含む): 40744640

約数和(自身を除く): 11824379

約数列:

[1, 3, 19, 57, 313, 939, 1621, 4863, 5947, 17841, 30799, 92397, 507373, 1522119, 9640087, 28920261]

約数ペア:

[(1, 28920261), (3, 9640087), (19, 1522119), (57, 507373), (313, 92397), (939, 30799), (1621, 17841), (4863, 5947)]