639450049

素因数分解:

$7^2\times {\mathrm{739}}^1\times {\mathrm{17659}}^1$

素因数の和:18412

約数の個数: 12

約数和(自身を含む): 744898800

約数和(自身を除く): 105448751

約数列:

[1, 7, 49, 739, 5173, 17659, 36211, 123613, 865291, 13050001, 91350007, 639450049]

約数ペア:

[(1, 639450049), (7, 91350007), (49, 13050001), (739, 865291), (5173, 123613), (17659, 36211)]