13987857

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 21683200

約数和(自身を除く): 7695343

約数列:

[1, 3, 13, 19, 39, 43, 57, 129, 247, 439, 559, 741, 817, 1317, 1677, 2451, 5707, 8341, 10621, 17121, 18877, 25023, 31863, 56631, 108433, 245401, 325299, 358663, 736203, 1075989, 4662619, 13987857]

約数ペア:

[(1, 13987857), (3, 4662619), (13, 1075989), (19, 736203), (39, 358663), (43, 325299), (57, 245401), (129, 108433), (247, 56631), (439, 31863), (559, 25023), (741, 18877), (817, 17121), (1317, 10621), (1677, 8341), (2451, 5707)]