21987307

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:582

約数の個数: 16

約数和(自身を含む): 24373440

約数和(自身を除く): 2386133

約数列:

[1, 17, 29, 103, 433, 493, 1751, 2987, 7361, 12557, 44599, 50779, 213469, 758183, 1293371, 21987307]

約数ペア:

[(1, 21987307), (17, 1293371), (29, 758183), (103, 213469), (433, 50779), (493, 44599), (1751, 12557), (2987, 7361)]