17986059

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21961}}^1$

素因数の和:21987

約数の個数: 24

約数和(自身を含む): 31976672

約数和(自身を除く): 13990613

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 21961, 65883, 153727, 197649, 285493, 461181, 856479, 1383543, 1998451, 2569437, 5995353, 17986059]

約数ペア:

[(1, 17986059), (3, 5995353), (7, 2569437), (9, 1998451), (13, 1383543), (21, 856479), (39, 461181), (63, 285493), (91, 197649), (117, 153727), (273, 65883), (819, 21961)]