25428821

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 31092960

約数和(自身を除く): 5664139

約数列:

[1, 11, 17, 19, 187, 209, 289, 323, 421, 3179, 3553, 4631, 5491, 7157, 7999, 60401, 78727, 87989, 121669, 135983, 1338359, 1495813, 2311711, 25428821]

約数ペア:

[(1, 25428821), (11, 2311711), (17, 1495813), (19, 1338359), (187, 135983), (209, 121669), (289, 87989), (323, 78727), (421, 60401), (3179, 7999), (3553, 7157), (4631, 5491)]