28687911

素因数分解:

$3^1\times 7^1\times {\mathrm{1117}}^1\times {\mathrm{1223}}^1$

素因数の和:2350

約数の個数: 16

約数和(自身を含む): 43789824

約数和(自身を除く): 15101913

約数列:

[1, 3, 7, 21, 1117, 1223, 3351, 3669, 7819, 8561, 23457, 25683, 1366091, 4098273, 9562637, 28687911]

約数ペア:

[(1, 28687911), (3, 9562637), (7, 4098273), (21, 1366091), (1117, 25683), (1223, 23457), (3351, 8561), (3669, 7819)]