28813291

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 6023189

約数列:

[1, 13, 19, 31, 53, 71, 247, 403, 589, 689, 923, 1007, 1349, 1643, 2201, 3763, 7657, 13091, 17537, 21359, 28613, 31217, 41819, 48919, 71497, 116653, 405821, 543647, 929461, 1516489, 2216407, 28813291]

約数ペア:

[(1, 28813291), (13, 2216407), (19, 1516489), (31, 929461), (53, 543647), (71, 405821), (247, 116653), (403, 71497), (589, 48919), (689, 41819), (923, 31217), (1007, 28613), (1349, 21359), (1643, 17537), (2201, 13091), (3763, 7657)]