51021999

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{19753}}^1$

素因数の和:19807

約数の個数: 24

約数和(自身を含む): 86285472

約数和(自身を除く): 35263473

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 19753, 59259, 138271, 177777, 414813, 809873, 1244439, 2429619, 5669111, 7288857, 17007333, 51021999]

約数ペア:

[(1, 51021999), (3, 17007333), (7, 7288857), (9, 5669111), (21, 2429619), (41, 1244439), (63, 809873), (123, 414813), (287, 177777), (369, 138271), (861, 59259), (2583, 19753)]