20161937185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1\times {\mathrm{18301}}^1$

素因数の和:19333

約数の個数: 32

約数和(自身を含む): 27617278752

約数和(自身を除く): 7455341567

約数列:

[1, 5, 13, 17, 65, 85, 221, 997, 1105, 4985, 12961, 16949, 18301, 64805, 84745, 91505, 220337, 237913, 311117, 1101685, 1189565, 1555585, 4044521, 18246097, 20222605, 91230485, 237199261, 310183649, 1185996305, 1550918245, 4032387437, 20161937185]

約数ペア:

[(1, 20161937185), (5, 4032387437), (13, 1550918245), (17, 1185996305), (65, 310183649), (85, 237199261), (221, 91230485), (997, 20222605), (1105, 18246097), (4985, 4044521), (12961, 1555585), (16949, 1189565), (18301, 1101685), (64805, 311117), (84745, 237913), (91505, 220337)]