28828149

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{72251}}^1$

素因数の和:72280

約数の個数: 16

約数和(自身を含む): 46241280

約数和(自身を除く): 17413131

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 72251, 216753, 505757, 1372769, 1517271, 4118307, 9609383, 28828149]

約数ペア:

[(1, 28828149), (3, 9609383), (7, 4118307), (19, 1517271), (21, 1372769), (57, 505757), (133, 216753), (399, 72251)]