217304816

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{491}}^1$

素因数の和:837

約数の個数: 40

約数和(自身を含む): 427056000

約数和(自身を除く): 209751184

約数列:

[1, 2, 4, 8, 16, 139, 199, 278, 398, 491, 556, 796, 982, 1112, 1592, 1964, 2224, 3184, 3928, 7856, 27661, 55322, 68249, 97709, 110644, 136498, 195418, 221288, 272996, 390836, 442576, 545992, 781672, 1091984, 1563344, 13581551, 27163102, 54326204, 108652408, 217304816]

約数ペア:

[(1, 217304816), (2, 108652408), (4, 54326204), (8, 27163102), (16, 13581551), (139, 1563344), (199, 1091984), (278, 781672), (398, 545992), (491, 442576), (556, 390836), (796, 272996), (982, 221288), (1112, 195418), (1592, 136498), (1964, 110644), (2224, 97709), (3184, 68249), (3928, 55322), (7856, 27661)]