28531769

素因数分解:

$7^3\times {\mathrm{193}}^1\times {\mathrm{431}}^1$

素因数の和:645

約数の個数: 16

約数和(自身を含む): 33523200

約数和(自身を除く): 4991431

約数列:

[1, 7, 49, 193, 343, 431, 1351, 3017, 9457, 21119, 66199, 83183, 147833, 582281, 4075967, 28531769]

約数ペア:

[(1, 28531769), (7, 4075967), (49, 582281), (193, 147833), (343, 83183), (431, 66199), (1351, 21119), (3017, 9457)]