87002991

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{21061}}^1$

素因数の和:21093

約数の個数: 24

約数和(自身を含む): 137998224

約数和(自身を除く): 50995233

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 21061, 63183, 189549, 358037, 568647, 1074111, 1705941, 3222333, 5117823, 9666999, 29000997, 87002991]

約数ペア:

[(1, 87002991), (3, 29000997), (9, 9666999), (17, 5117823), (27, 3222333), (51, 1705941), (81, 1074111), (153, 568647), (243, 358037), (459, 189549), (1377, 63183), (4131, 21061)]