17687319

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 8923881

約数列:

[1, 3, 13, 39, 43, 53, 129, 159, 199, 559, 597, 689, 1677, 2067, 2279, 2587, 6837, 7761, 8557, 10547, 25671, 29627, 31641, 88881, 111241, 137111, 333723, 411333, 453521, 1360563, 5895773, 17687319]

約数ペア:

[(1, 17687319), (3, 5895773), (13, 1360563), (39, 453521), (43, 411333), (53, 333723), (129, 137111), (159, 111241), (199, 88881), (559, 31641), (597, 29627), (689, 25671), (1677, 10547), (2067, 8557), (2279, 7761), (2587, 6837)]