28257639

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{7727}}^1$

素因数の和:7806

約数の個数: 16

約数和(自身を含む): 40061952

約数和(自身を除く): 11804313

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 7727, 23181, 177721, 409531, 533163, 1228593, 9419213, 28257639]

約数ペア:

[(1, 28257639), (3, 9419213), (23, 1228593), (53, 533163), (69, 409531), (159, 177721), (1219, 23181), (3657, 7727)]