28810971

素因数分解:

$3^4\times 7^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 80

約数和(自身を含む): 54014400

約数和(自身を除く): 25203429

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 61, 63, 81, 119, 147, 153, 183, 189, 343, 357, 427, 441, 459, 549, 567, 833, 1029, 1037, 1071, 1281, 1323, 1377, 1647, 2499, 2989, 3087, 3111, 3213, 3843, 3969, 4941, 5831, 7259, 7497, 8967, 9261, 9333, 9639, 11529, 17493, 20923, 21777, 22491, 26901, 27783, 27999, 34587, 50813, 52479, 62769, 65331, 67473, 80703, 83997, 152439, 157437, 188307, 195993, 242109, 355691, 457317, 472311, 564921, 587979, 1067073, 1371951, 1694763, 3201219, 4115853, 9603657, 28810971]

約数ペア:

[(1, 28810971), (3, 9603657), (7, 4115853), (9, 3201219), (17, 1694763), (21, 1371951), (27, 1067073), (49, 587979), (51, 564921), (61, 472311), (63, 457317), (81, 355691), (119, 242109), (147, 195993), (153, 188307), (183, 157437), (189, 152439), (343, 83997), (357, 80703), (427, 67473), (441, 65331), (459, 62769), (549, 52479), (567, 50813), (833, 34587), (1029, 27999), (1037, 27783), (1071, 26901), (1281, 22491), (1323, 21777), (1377, 20923), (1647, 17493), (2499, 11529), (2989, 9639), (3087, 9333), (3111, 9261), (3213, 8967), (3843, 7497), (3969, 7259), (4941, 5831)]