28347705

素因数分解:

$3^3\times 5^1\times {\mathrm{209983}}^1$

素因数の和:209997

約数の個数: 16

約数和(自身を含む): 50396160

約数和(自身を除く): 22048455

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 209983, 629949, 1049915, 1889847, 3149745, 5669541, 9449235, 28347705]

約数ペア:

[(1, 28347705), (3, 9449235), (5, 5669541), (9, 3149745), (15, 1889847), (27, 1049915), (45, 629949), (135, 209983)]