27988821

素因数分解:

$3^4\times 7^1\times {\mathrm{49363}}^1$

素因数の和:49382

約数の個数: 20

約数和(自身を含む): 47784352

約数和(自身を除く): 19795531

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49363, 148089, 345541, 444267, 1036623, 1332801, 3109869, 3998403, 9329607, 27988821]

約数ペア:

[(1, 27988821), (3, 9329607), (7, 3998403), (9, 3109869), (21, 1332801), (27, 1036623), (63, 444267), (81, 345541), (189, 148089), (567, 49363)]