28168707

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{9791}}^1$

素因数の和:9938

約数の個数: 16

約数和(自身を含む): 43241472

約数和(自身を除く): 15072765

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 9791, 29373, 68537, 205611, 1341367, 4024101, 9389569, 28168707]

約数ペア:

[(1, 28168707), (3, 9389569), (7, 4024101), (21, 1341367), (137, 205611), (411, 68537), (959, 29373), (2877, 9791)]