217660689

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 343062720

約数和(自身を除く): 125402031

約数列:

[1, 3, 9, 27, 29, 67, 81, 87, 201, 243, 261, 461, 603, 783, 1383, 1809, 1943, 2349, 4149, 5427, 5829, 7047, 12447, 13369, 16281, 17487, 30887, 37341, 40107, 52461, 92661, 112023, 120321, 157383, 277983, 360963, 472149, 833949, 895723, 1082889, 2501847, 2687169, 3248667, 7505541, 8061507, 24184521, 72553563, 217660689]

約数ペア:

[(1, 217660689), (3, 72553563), (9, 24184521), (27, 8061507), (29, 7505541), (67, 3248667), (81, 2687169), (87, 2501847), (201, 1082889), (243, 895723), (261, 833949), (461, 472149), (603, 360963), (783, 277983), (1383, 157383), (1809, 120321), (1943, 112023), (2349, 92661), (4149, 52461), (5427, 40107), (5829, 37341), (7047, 30887), (12447, 17487), (13369, 16281)]