28178493

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{10243}}^1$

素因数の和:10384

約数の個数: 16

約数和(自身を含む): 43270656

約数和(自身を除く): 15092163

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 10243, 30729, 71701, 215103, 1341833, 4025499, 9392831, 28178493]

約数ペア:

[(1, 28178493), (3, 9392831), (7, 4025499), (21, 1341833), (131, 215103), (393, 71701), (917, 30729), (2751, 10243)]