21290225876

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{383221}}^1$

素因数の和:383304

約数の個数: 48

約数和(自身を含む): 42491655360

約数和(自身を除く): 21201429484

約数列:

[1, 2, 4, 17, 19, 34, 38, 43, 68, 76, 86, 172, 323, 646, 731, 817, 1292, 1462, 1634, 2924, 3268, 13889, 27778, 55556, 383221, 766442, 1532884, 6514757, 7281199, 13029514, 14562398, 16478503, 26059028, 29124796, 32957006, 65914012, 123780383, 247560766, 280134551, 313091557, 495121532, 560269102, 626183114, 1120538204, 1252366228, 5322556469, 10645112938, 21290225876]

約数ペア:

[(1, 21290225876), (2, 10645112938), (4, 5322556469), (17, 1252366228), (19, 1120538204), (34, 626183114), (38, 560269102), (43, 495121532), (68, 313091557), (76, 280134551), (86, 247560766), (172, 123780383), (323, 65914012), (646, 32957006), (731, 29124796), (817, 26059028), (1292, 16478503), (1462, 14562398), (1634, 13029514), (2924, 7281199), (3268, 6514757), (13889, 1532884), (27778, 766442), (55556, 383221)]