28790979

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 48607776

約数和(自身を除く): 19816797

約数列:

[1, 3, 7, 17, 21, 41, 49, 51, 119, 123, 147, 281, 287, 357, 697, 833, 843, 861, 1967, 2009, 2091, 2499, 4777, 4879, 5901, 6027, 11521, 13769, 14331, 14637, 33439, 34153, 34563, 41307, 80647, 100317, 102459, 195857, 234073, 241941, 564529, 587571, 702219, 1370999, 1693587, 4112997, 9596993, 28790979]

約数ペア:

[(1, 28790979), (3, 9596993), (7, 4112997), (17, 1693587), (21, 1370999), (41, 702219), (49, 587571), (51, 564529), (119, 241941), (123, 234073), (147, 195857), (281, 102459), (287, 100317), (357, 80647), (697, 41307), (833, 34563), (843, 34153), (861, 33439), (1967, 14637), (2009, 14331), (2091, 13769), (2499, 11521), (4777, 6027), (4879, 5901)]