19802185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4547}}^1$

素因数の和:4632

約数の個数: 16

約数和(自身を含む): 25978176

約数和(自身を除く): 6175991

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 4547, 22735, 59111, 295555, 304649, 1523245, 3960437, 19802185]

約数ペア:

[(1, 19802185), (5, 3960437), (13, 1523245), (65, 304649), (67, 295555), (335, 59111), (871, 22735), (4355, 4547)]