19156865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{593}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 9583231

約数列:

[1, 5, 7, 13, 35, 65, 71, 91, 355, 455, 497, 593, 923, 2485, 2965, 4151, 4615, 6461, 7709, 20755, 32305, 38545, 42103, 53963, 210515, 269815, 294721, 547339, 1473605, 2736695, 3831373, 19156865]

約数ペア:

[(1, 19156865), (5, 3831373), (7, 2736695), (13, 1473605), (35, 547339), (65, 294721), (71, 269815), (91, 210515), (355, 53963), (455, 42103), (497, 38545), (593, 32305), (923, 20755), (2485, 7709), (2965, 6461), (4151, 4615)]