28788129

素因数分解:

$3^4\times {\mathrm{293}}^1\times {\mathrm{1213}}^1$

素因数の和:1518

約数の個数: 20

約数和(自身を含む): 43186836

約数和(自身を除く): 14398707

約数列:

[1, 3, 9, 27, 81, 293, 879, 1213, 2637, 3639, 7911, 10917, 23733, 32751, 98253, 355409, 1066227, 3198681, 9596043, 28788129]

約数ペア:

[(1, 28788129), (3, 9596043), (9, 3198681), (27, 1066227), (81, 355409), (293, 98253), (879, 32751), (1213, 23733), (2637, 10917), (3639, 7911)]