21070269

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 14310531

約数列:

[1, 3, 9, 11, 29, 33, 41, 87, 99, 123, 179, 261, 319, 369, 451, 537, 957, 1189, 1353, 1611, 1969, 2871, 3567, 4059, 5191, 5907, 7339, 10701, 13079, 15573, 17721, 22017, 39237, 46719, 57101, 66051, 80729, 117711, 171303, 212831, 242187, 513909, 638493, 726561, 1915479, 2341141, 7023423, 21070269]

約数ペア:

[(1, 21070269), (3, 7023423), (9, 2341141), (11, 1915479), (29, 726561), (33, 638493), (41, 513909), (87, 242187), (99, 212831), (123, 171303), (179, 117711), (261, 80729), (319, 66051), (369, 57101), (451, 46719), (537, 39237), (957, 22017), (1189, 17721), (1353, 15573), (1611, 13079), (1969, 10701), (2871, 7339), (3567, 5907), (4059, 5191)]