20831251

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1153}}^1$

素因数の和:1278

約数の個数: 16

約数和(自身を含む): 24926400

約数和(自身を除く): 4095149

約数列:

[1, 7, 29, 89, 203, 623, 1153, 2581, 8071, 18067, 33437, 102617, 234059, 718319, 2975893, 20831251]

約数ペア:

[(1, 20831251), (7, 2975893), (29, 718319), (89, 234059), (203, 102617), (623, 33437), (1153, 18067), (2581, 8071)]