19666865

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{4093}}^1$

素因数の和:4160

約数の個数: 12

約数和(自身を含む): 24392052

約数和(自身を除く): 4725187

約数列:

[1, 5, 31, 155, 961, 4093, 4805, 20465, 126883, 634415, 3933373, 19666865]

約数ペア:

[(1, 19666865), (5, 3933373), (31, 634415), (155, 126883), (961, 20465), (4093, 4805)]