1209870837

素因数分解:

$3^4\times 7^1\times {\mathrm{2133811}}^1$

素因数の和:2133830

約数の個数: 20

約数和(自身を含む): 2065530016

約数和(自身を除く): 855659179

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2133811, 6401433, 14936677, 19204299, 44810031, 57612897, 134430093, 172838691, 403290279, 1209870837]

約数ペア:

[(1, 1209870837), (3, 403290279), (7, 172838691), (9, 134430093), (21, 57612897), (27, 44810031), (63, 19204299), (81, 14936677), (189, 6401433), (567, 2133811)]