28243201

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{829}}^1$

素因数の和:1024

約数の個数: 16

約数和(自身を含む): 33571840

約数和(自身を除く): 5328639

約数列:

[1, 7, 31, 157, 217, 829, 1099, 4867, 5803, 25699, 34069, 130153, 179893, 911071, 4034743, 28243201]

約数ペア:

[(1, 28243201), (7, 4034743), (31, 911071), (157, 179893), (217, 130153), (829, 34069), (1099, 25699), (4867, 5803)]