28748745

素因数分解:

$3^2\times 5^1\times {\mathrm{638861}}^1$

素因数の和:638872

約数の個数: 12

約数和(自身を含む): 49831236

約数和(自身を除く): 21082491

約数列:

[1, 3, 5, 9, 15, 45, 638861, 1916583, 3194305, 5749749, 9582915, 28748745]

約数ペア:

[(1, 28748745), (3, 9582915), (5, 5749749), (9, 3194305), (15, 1916583), (45, 638861)]