16640559

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{15803}}^1$

素因数の和:15828

約数の個数: 20

約数和(自身を含む): 26771976

約数和(自身を除く): 10131417

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 15803, 47409, 142227, 205439, 426681, 616317, 1280043, 1848951, 5546853, 16640559]

約数ペア:

[(1, 16640559), (3, 5546853), (9, 1848951), (13, 1280043), (27, 616317), (39, 426681), (81, 205439), (117, 142227), (351, 47409), (1053, 15803)]