28977669

素因数分解:

$3^4\times 7^4\times {\mathrm{149}}^1$

素因数の和:189

約数の個数: 50

約数和(自身を含む): 50838150

約数和(自身を除く): 21860481

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 149, 189, 343, 441, 447, 567, 1029, 1043, 1323, 1341, 2401, 3087, 3129, 3969, 4023, 7203, 7301, 9261, 9387, 12069, 21609, 21903, 27783, 28161, 51107, 64827, 65709, 84483, 153321, 194481, 197127, 357749, 459963, 591381, 1073247, 1379889, 3219741, 4139667, 9659223, 28977669]

約数ペア:

[(1, 28977669), (3, 9659223), (7, 4139667), (9, 3219741), (21, 1379889), (27, 1073247), (49, 591381), (63, 459963), (81, 357749), (147, 197127), (149, 194481), (189, 153321), (343, 84483), (441, 65709), (447, 64827), (567, 51107), (1029, 28161), (1043, 27783), (1323, 21903), (1341, 21609), (2401, 12069), (3087, 9387), (3129, 9261), (3969, 7301), (4023, 7203)]