19106815

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{857}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 9721985

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 343, 455, 637, 857, 1715, 3185, 4285, 4459, 5999, 11141, 22295, 29995, 41993, 55705, 77987, 209965, 293951, 389935, 545909, 1469755, 2729545, 3821363, 19106815]

約数ペア:

[(1, 19106815), (5, 3821363), (7, 2729545), (13, 1469755), (35, 545909), (49, 389935), (65, 293951), (91, 209965), (245, 77987), (343, 55705), (455, 41993), (637, 29995), (857, 22295), (1715, 11141), (3185, 5999), (4285, 4459)]