278889667

素因数分解:

$7^1\times {\mathrm{41}}^2\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 330981408

約数和(自身を除く): 52091741

約数列:

[1, 7, 41, 137, 173, 287, 959, 1211, 1681, 5617, 7093, 11767, 23701, 39319, 49651, 165907, 230297, 290813, 971741, 1612079, 2035691, 6802187, 39841381, 278889667]

約数ペア:

[(1, 278889667), (7, 39841381), (41, 6802187), (137, 2035691), (173, 1612079), (287, 971741), (959, 290813), (1211, 230297), (1681, 165907), (5617, 49651), (7093, 39319), (11767, 23701)]