28142774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{9203}}^1$

素因数の和:9355

約数の個数: 16

約数和(自身を含む): 46388160

約数和(自身を除く): 18245386

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 9203, 18406, 101233, 202466, 1279217, 2558434, 14071387, 28142774]

約数ペア:

[(1, 28142774), (2, 14071387), (11, 2558434), (22, 1279217), (139, 202466), (278, 101233), (1529, 18406), (3058, 9203)]