21707675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{409}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 29588880

約数和(自身を除く): 7881205

約数列:

[1, 5, 11, 25, 55, 193, 275, 409, 965, 2045, 2123, 4499, 4825, 10225, 10615, 22495, 53075, 78937, 112475, 394685, 868307, 1973425, 4341535, 21707675]

約数ペア:

[(1, 21707675), (5, 4341535), (11, 1973425), (25, 868307), (55, 394685), (193, 112475), (275, 78937), (409, 53075), (965, 22495), (2045, 10615), (2123, 10225), (4499, 4825)]