28542717

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3307}}^1$

素因数の和:3457

約数の個数: 24

約数和(自身を含む): 47476416

約数和(自身を除く): 18933699

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2877, 3307, 8631, 9921, 23149, 29763, 69447, 208341, 453059, 1359177, 3171413, 4077531, 9514239, 28542717]

約数ペア:

[(1, 28542717), (3, 9514239), (7, 4077531), (9, 3171413), (21, 1359177), (63, 453059), (137, 208341), (411, 69447), (959, 29763), (1233, 23149), (2877, 9921), (3307, 8631)]