25127921

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 8579599

約数列:

[1, 7, 13, 17, 37, 91, 119, 221, 259, 439, 481, 629, 1547, 3073, 3367, 4403, 5707, 7463, 8177, 16243, 39949, 52241, 57239, 97019, 113701, 211159, 276131, 679133, 1478113, 1932917, 3589703, 25127921]

約数ペア:

[(1, 25127921), (7, 3589703), (13, 1932917), (17, 1478113), (37, 679133), (91, 276131), (119, 211159), (221, 113701), (259, 97019), (439, 57239), (481, 52241), (629, 39949), (1547, 16243), (3073, 8177), (3367, 7463), (4403, 5707)]