20650147

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 24230592

約数和(自身を除く): 3580445

約数列:

[1, 7, 61, 137, 353, 427, 959, 2471, 8357, 21533, 48361, 58499, 150731, 338527, 2950021, 20650147]

約数ペア:

[(1, 20650147), (7, 2950021), (61, 338527), (137, 150731), (353, 58499), (427, 48361), (959, 21533), (2471, 8357)]