20413449

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1129}}^1$

素因数の和:1190

約数の個数: 36

約数和(自身を含む): 35167860

約数和(自身を除く): 14754411

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 1129, 2009, 2583, 3387, 6027, 7903, 10161, 18081, 23709, 46289, 55321, 71127, 138867, 165963, 324023, 416601, 497889, 972069, 2268161, 2916207, 6804483, 20413449]

約数ペア:

[(1, 20413449), (3, 6804483), (7, 2916207), (9, 2268161), (21, 972069), (41, 497889), (49, 416601), (63, 324023), (123, 165963), (147, 138867), (287, 71127), (369, 55321), (441, 46289), (861, 23709), (1129, 18081), (2009, 10161), (2583, 7903), (3387, 6027)]