221290993

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^2\times {\mathrm{1301}}^1$

素因数の和:1413

約数の個数: 24

約数和(自身を含む): 282106944

約数和(自身を除く): 60815951

約数列:

[1, 7, 11, 47, 77, 329, 517, 1301, 2209, 3619, 9107, 14311, 15463, 24299, 61147, 100177, 170093, 428029, 672617, 2873909, 4708319, 20117363, 31612999, 221290993]

約数ペア:

[(1, 221290993), (7, 31612999), (11, 20117363), (47, 4708319), (77, 2873909), (329, 672617), (517, 428029), (1301, 170093), (2209, 100177), (3619, 61147), (9107, 24299), (14311, 15463)]