20801211

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{601}}^1$

素因数の和:826

約数の個数: 16

約数和(自身を含む): 28318080

約数和(自身を除く): 7516869

約数列:

[1, 3, 83, 139, 249, 417, 601, 1803, 11537, 34611, 49883, 83539, 149649, 250617, 6933737, 20801211]

約数ペア:

[(1, 20801211), (3, 6933737), (83, 250617), (139, 149649), (249, 83539), (417, 49883), (601, 34611), (1803, 11537)]