13221958

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:579

約数の個数: 16

約数和(自身を含む): 20160000

約数和(自身を除く): 6938042

約数列:

[1, 2, 139, 199, 239, 278, 398, 478, 27661, 33221, 47561, 55322, 66442, 95122, 6610979, 13221958]

約数ペア:

[(1, 13221958), (2, 6610979), (139, 95122), (199, 66442), (239, 55322), (278, 47561), (398, 33221), (478, 27661)]