90281709

素因数分解:

$3^4\times 7^1\times {\mathrm{159227}}^1$

素因数の和:159246

約数の個数: 20

約数和(自身を含む): 154132704

約数和(自身を除く): 63850995

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 159227, 477681, 1114589, 1433043, 3343767, 4299129, 10031301, 12897387, 30093903, 90281709]

約数ペア:

[(1, 90281709), (3, 30093903), (7, 12897387), (9, 10031301), (21, 4299129), (27, 3343767), (63, 1433043), (81, 1114589), (189, 477681), (567, 159227)]