28980189

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{27059}}^1$

素因数の和:27089

約数の個数: 24

約数和(自身を含む): 50656320

約数和(自身を除く): 21676131

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 27059, 81177, 189413, 243531, 460003, 568239, 1380009, 1704717, 3220021, 4140027, 9660063, 28980189]

約数ペア:

[(1, 28980189), (3, 9660063), (7, 4140027), (9, 3220021), (17, 1704717), (21, 1380009), (51, 568239), (63, 460003), (119, 243531), (153, 189413), (357, 81177), (1071, 27059)]