28427609

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{557}}^1$

素因数の和:904

約数の個数: 16

約数和(自身を含む): 34069248

約数和(自身を除く): 5641639

約数列:

[1, 7, 23, 161, 317, 557, 2219, 3899, 7291, 12811, 51037, 89677, 176569, 1235983, 4061087, 28427609]

約数ペア:

[(1, 28427609), (7, 4061087), (23, 1235983), (161, 176569), (317, 89677), (557, 51037), (2219, 12811), (3899, 7291)]