2151639

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:85

約数の個数: 48

約数和(自身を含む): 3931200

約数和(自身を除く): 1779561

約数列:

[1, 3, 7, 9, 17, 21, 41, 49, 51, 63, 119, 123, 147, 153, 287, 343, 357, 369, 441, 697, 833, 861, 1029, 1071, 2009, 2091, 2499, 2583, 3087, 4879, 5831, 6027, 6273, 7497, 14063, 14637, 17493, 18081, 34153, 42189, 43911, 52479, 102459, 126567, 239071, 307377, 717213, 2151639]

約数ペア:

[(1, 2151639), (3, 717213), (7, 307377), (9, 239071), (17, 126567), (21, 102459), (41, 52479), (49, 43911), (51, 42189), (63, 34153), (119, 18081), (123, 17493), (147, 14637), (153, 14063), (287, 7497), (343, 6273), (357, 6027), (369, 5831), (441, 4879), (697, 3087), (833, 2583), (861, 2499), (1029, 2091), (1071, 2009)]