20779165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{467}}^1\times {\mathrm{809}}^1$

素因数の和:1292

約数の個数: 16

約数和(自身を含む): 27293760

約数和(自身を除く): 6514595

約数列:

[1, 5, 11, 55, 467, 809, 2335, 4045, 5137, 8899, 25685, 44495, 377803, 1889015, 4155833, 20779165]

約数ペア:

[(1, 20779165), (5, 4155833), (11, 1889015), (55, 377803), (467, 44495), (809, 25685), (2335, 8899), (4045, 5137)]