291267207

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2011}}^1$

素因数の和:2065

約数の個数: 72

約数和(自身を含む): 556599680

約数和(自身を除く): 265332473

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 121, 133, 171, 209, 231, 363, 399, 627, 693, 847, 1089, 1197, 1463, 1881, 2011, 2299, 2541, 4389, 6033, 6897, 7623, 13167, 14077, 16093, 18099, 20691, 22121, 38209, 42231, 48279, 66363, 114627, 126693, 144837, 154847, 199089, 243331, 267463, 343881, 420299, 464541, 729993, 802389, 1260897, 1393623, 1703317, 2189979, 2407167, 2942093, 3782691, 4623289, 5109951, 8826279, 13869867, 15329853, 26478837, 32363023, 41609601, 97089069, 291267207]

約数ペア:

[(1, 291267207), (3, 97089069), (7, 41609601), (9, 32363023), (11, 26478837), (19, 15329853), (21, 13869867), (33, 8826279), (57, 5109951), (63, 4623289), (77, 3782691), (99, 2942093), (121, 2407167), (133, 2189979), (171, 1703317), (209, 1393623), (231, 1260897), (363, 802389), (399, 729993), (627, 464541), (693, 420299), (847, 343881), (1089, 267463), (1197, 243331), (1463, 199089), (1881, 154847), (2011, 144837), (2299, 126693), (2541, 114627), (4389, 66363), (6033, 48279), (6897, 42231), (7623, 38209), (13167, 22121), (14077, 20691), (16093, 18099)]