18965817

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{937}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 29704584

約数和(自身を除く): 10738767

約数列:

[1, 3, 9, 13, 39, 117, 173, 519, 937, 1557, 2249, 2811, 6747, 8433, 12181, 20241, 36543, 109629, 162101, 486303, 1458909, 2107313, 6321939, 18965817]

約数ペア:

[(1, 18965817), (3, 6321939), (9, 2107313), (13, 1458909), (39, 486303), (117, 162101), (173, 109629), (519, 36543), (937, 20241), (1557, 12181), (2249, 8433), (2811, 6747)]