21741453

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 36429120

約数和(自身を除く): 14687667

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 243, 277, 323, 459, 513, 831, 969, 1377, 1539, 2493, 2907, 4131, 4617, 4709, 5263, 7479, 8721, 14127, 15789, 22437, 26163, 42381, 47367, 67311, 78489, 89471, 127143, 142101, 268413, 381429, 426303, 805239, 1144287, 1278909, 2415717, 7247151, 21741453]

約数ペア:

[(1, 21741453), (3, 7247151), (9, 2415717), (17, 1278909), (19, 1144287), (27, 805239), (51, 426303), (57, 381429), (81, 268413), (153, 142101), (171, 127143), (243, 89471), (277, 78489), (323, 67311), (459, 47367), (513, 42381), (831, 26163), (969, 22437), (1377, 15789), (1539, 14127), (2493, 8721), (2907, 7479), (4131, 5263), (4617, 4709)]