28223237

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1567}}^1$

素因数の和:1688

約数の個数: 16

約数和(自身を含む): 33718272

約数和(自身を除く): 5495035

約数列:

[1, 7, 31, 83, 217, 581, 1567, 2573, 10969, 18011, 48577, 130061, 340039, 910427, 4031891, 28223237]

約数ペア:

[(1, 28223237), (7, 4031891), (31, 910427), (83, 340039), (217, 130061), (581, 48577), (1567, 18011), (2573, 10969)]