51663855

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{463}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 85257216

約数和(自身を除く): 33593361

約数列:

[1, 3, 5, 15, 43, 129, 173, 215, 463, 519, 645, 865, 1389, 2315, 2595, 6945, 7439, 19909, 22317, 37195, 59727, 80099, 99545, 111585, 240297, 298635, 400495, 1201485, 3444257, 10332771, 17221285, 51663855]

約数ペア:

[(1, 51663855), (3, 17221285), (5, 10332771), (15, 3444257), (43, 1201485), (129, 400495), (173, 298635), (215, 240297), (463, 111585), (519, 99545), (645, 80099), (865, 59727), (1389, 37195), (2315, 22317), (2595, 19909), (6945, 7439)]