21212206

素因数分解:

$2^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:663

約数の個数: 16

約数和(自身を含む): 32256000

約数和(自身を除く): 11043794

約数列:

[1, 2, 199, 223, 239, 398, 446, 478, 44377, 47561, 53297, 88754, 95122, 106594, 10606103, 21212206]

約数ペア:

[(1, 21212206), (2, 10606103), (199, 106594), (223, 95122), (239, 88754), (398, 53297), (446, 47561), (478, 44377)]