20161785

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{27431}}^1$

素因数の和:27453

約数の個数: 24

約数和(自身を含む): 37526976

約数和(自身を除く): 17365191

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 27431, 82293, 137155, 192017, 411465, 576051, 960085, 1344119, 2880255, 4032357, 6720595, 20161785]

約数ペア:

[(1, 20161785), (3, 6720595), (5, 4032357), (7, 2880255), (15, 1344119), (21, 960085), (35, 576051), (49, 411465), (105, 192017), (147, 137155), (245, 82293), (735, 27431)]