81493971

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1217}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 125229888

約数和(自身を除く): 43735917

約数列:

[1, 3, 13, 17, 39, 51, 101, 221, 303, 663, 1217, 1313, 1717, 3651, 3939, 5151, 15821, 20689, 22321, 47463, 62067, 66963, 122917, 268957, 368751, 806871, 1597921, 2089589, 4793763, 6268767, 27164657, 81493971]

約数ペア:

[(1, 81493971), (3, 27164657), (13, 6268767), (17, 4793763), (39, 2089589), (51, 1597921), (101, 806871), (221, 368751), (303, 268957), (663, 122917), (1217, 66963), (1313, 62067), (1717, 47463), (3651, 22321), (3939, 20689), (5151, 15821)]