19809009

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{66697}}^1$

素因数の和:66717

約数の個数: 16

約数和(自身を含む): 32015040

約数和(自身を除く): 12206031

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 66697, 200091, 600273, 733667, 1800819, 2201001, 6603003, 19809009]

約数ペア:

[(1, 19809009), (3, 6603003), (9, 2201001), (11, 1800819), (27, 733667), (33, 600273), (99, 200091), (297, 66697)]