21338707

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{647}}^1$

素因数の和:762

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 2611373

約数列:

[1, 13, 43, 59, 559, 647, 767, 2537, 8411, 27821, 32981, 38173, 361673, 496249, 1641439, 21338707]

約数ペア:

[(1, 21338707), (13, 1641439), (43, 496249), (59, 361673), (559, 38173), (647, 32981), (767, 27821), (2537, 8411)]