28757379

素因数分解:

$3^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{2789}}^1$

素因数の和:3290

約数の個数: 16

約数和(自身を含む): 43925760

約数和(自身を除く): 15168381

約数列:

[1, 3, 7, 21, 491, 1473, 2789, 3437, 8367, 10311, 19523, 58569, 1369399, 4108197, 9585793, 28757379]

約数ペア:

[(1, 28757379), (3, 9585793), (7, 4108197), (21, 1369399), (491, 58569), (1473, 19523), (2789, 10311), (3437, 8367)]