2689920009

素因数分解:

$3^4\times 7^1\times {\mathrm{4744127}}^1$

素因数の和:4744146

約数の個数: 20

約数和(自身を含む): 4592315904

約数和(自身を除く): 1902395895

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 4744127, 14232381, 33208889, 42697143, 99626667, 128091429, 298880001, 384274287, 896640003, 2689920009]

約数ペア:

[(1, 2689920009), (3, 896640003), (7, 384274287), (9, 298880001), (21, 128091429), (27, 99626667), (63, 42697143), (81, 33208889), (189, 14232381), (567, 4744127)]