28284957

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 46230912

約数和(自身を除く): 17945955

約数列:

[1, 3, 9, 17, 27, 41, 51, 81, 123, 153, 167, 243, 369, 459, 501, 697, 1107, 1377, 1503, 2091, 2839, 3321, 4131, 4509, 6273, 6847, 8517, 9963, 13527, 18819, 20541, 25551, 40581, 56457, 61623, 76653, 116399, 169371, 184869, 229959, 349197, 554607, 689877, 1047591, 1663821, 3142773, 9428319, 28284957]

約数ペア:

[(1, 28284957), (3, 9428319), (9, 3142773), (17, 1663821), (27, 1047591), (41, 689877), (51, 554607), (81, 349197), (123, 229959), (153, 184869), (167, 169371), (243, 116399), (369, 76653), (459, 61623), (501, 56457), (697, 40581), (1107, 25551), (1377, 20541), (1503, 18819), (2091, 13527), (2839, 9963), (3321, 8517), (4131, 6847), (4509, 6273)]