648439857

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{401}}^1$

素因数の和:711

約数の個数: 64

約数和(自身を含む): 1102187520

約数和(自身を除く): 453747663

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 271, 351, 401, 459, 663, 813, 1203, 1989, 2439, 3523, 3609, 4607, 5213, 5967, 6817, 7317, 10569, 10827, 13821, 15639, 20451, 31707, 41463, 46917, 59891, 61353, 88621, 95121, 108671, 124389, 140751, 179673, 184059, 265863, 326013, 539019, 797589, 978039, 1412723, 1617057, 1847407, 2392767, 2934117, 4238169, 5542221, 12714507, 16626663, 24016291, 38143521, 49879989, 72048873, 216146619, 648439857]

約数ペア:

[(1, 648439857), (3, 216146619), (9, 72048873), (13, 49879989), (17, 38143521), (27, 24016291), (39, 16626663), (51, 12714507), (117, 5542221), (153, 4238169), (221, 2934117), (271, 2392767), (351, 1847407), (401, 1617057), (459, 1412723), (663, 978039), (813, 797589), (1203, 539019), (1989, 326013), (2439, 265863), (3523, 184059), (3609, 179673), (4607, 140751), (5213, 124389), (5967, 108671), (6817, 95121), (7317, 88621), (10569, 61353), (10827, 59891), (13821, 46917), (15639, 41463), (20451, 31707)]