208688319

素因数分解:

$3^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:298

約数の個数: 80

約数和(自身を含む): 374685696

約数和(自身を除く): 165997377

約数列:

[1, 3, 7, 9, 21, 27, 41, 47, 63, 81, 123, 141, 189, 191, 287, 329, 369, 423, 567, 573, 861, 987, 1107, 1269, 1337, 1719, 1927, 2583, 2961, 3321, 3807, 4011, 5157, 5781, 7749, 7831, 8883, 8977, 12033, 13489, 15471, 17343, 23247, 23493, 26649, 26931, 36099, 40467, 52029, 54817, 62839, 70479, 80793, 108297, 121401, 156087, 164451, 188517, 211437, 242379, 364203, 368057, 493353, 565551, 634311, 727137, 1092609, 1104171, 1480059, 1696653, 2576399, 3312513, 4440177, 5089959, 7729197, 9937539, 23187591, 29812617, 69562773, 208688319]

約数ペア:

[(1, 208688319), (3, 69562773), (7, 29812617), (9, 23187591), (21, 9937539), (27, 7729197), (41, 5089959), (47, 4440177), (63, 3312513), (81, 2576399), (123, 1696653), (141, 1480059), (189, 1104171), (191, 1092609), (287, 727137), (329, 634311), (369, 565551), (423, 493353), (567, 368057), (573, 364203), (861, 242379), (987, 211437), (1107, 188517), (1269, 164451), (1337, 156087), (1719, 121401), (1927, 108297), (2583, 80793), (2961, 70479), (3321, 62839), (3807, 54817), (4011, 52029), (5157, 40467), (5781, 36099), (7749, 26931), (7831, 26649), (8883, 23493), (8977, 23247), (12033, 17343), (13489, 15471)]