20660049

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 35942400

約数和(自身を除く): 15282351

約数列:

[1, 3, 9, 17, 19, 23, 27, 51, 57, 69, 103, 153, 171, 207, 309, 323, 391, 437, 459, 513, 621, 927, 969, 1173, 1311, 1751, 1957, 2369, 2781, 2907, 3519, 3933, 5253, 5871, 7107, 7429, 8721, 10557, 11799, 15759, 17613, 21321, 22287, 33269, 40273, 45011, 47277, 52839, 63963, 66861, 99807, 120819, 135033, 200583, 299421, 362457, 405099, 765187, 898263, 1087371, 1215297, 2295561, 6886683, 20660049]

約数ペア:

[(1, 20660049), (3, 6886683), (9, 2295561), (17, 1215297), (19, 1087371), (23, 898263), (27, 765187), (51, 405099), (57, 362457), (69, 299421), (103, 200583), (153, 135033), (171, 120819), (207, 99807), (309, 66861), (323, 63963), (391, 52839), (437, 47277), (459, 45011), (513, 40273), (621, 33269), (927, 22287), (969, 21321), (1173, 17613), (1311, 15759), (1751, 11799), (1957, 10557), (2369, 8721), (2781, 7429), (2907, 7107), (3519, 5871), (3933, 5253)]