27989145

素因数分解:

$3^4\times 5^1\times {\mathrm{69109}}^1$

素因数の和:69126

約数の個数: 20

約数和(自身を含む): 50173860

約数和(自身を除く): 22184715

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69109, 207327, 345545, 621981, 1036635, 1865943, 3109905, 5597829, 9329715, 27989145]

約数ペア:

[(1, 27989145), (3, 9329715), (5, 5597829), (9, 3109905), (15, 1865943), (27, 1036635), (45, 621981), (81, 345545), (135, 207327), (405, 69109)]