19828985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{5381}}^1$

素因数の和:5464

約数の個数: 16

約数和(自身を含む): 26350272

約数和(自身を除く): 6521287

約数列:

[1, 5, 11, 55, 67, 335, 737, 3685, 5381, 26905, 59191, 295955, 360527, 1802635, 3965797, 19828985]

約数ペア:

[(1, 19828985), (5, 3965797), (11, 1802635), (55, 360527), (67, 295955), (335, 59191), (737, 26905), (3685, 5381)]