221165

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 16

約数和(自身を含む): 311040

約数和(自身を除く): 89875

約数列:

[1, 5, 7, 35, 71, 89, 355, 445, 497, 623, 2485, 3115, 6319, 31595, 44233, 221165]

約数ペア:

[(1, 221165), (5, 44233), (7, 31595), (35, 6319), (71, 3115), (89, 2485), (355, 623), (445, 497)]