20009561

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8231}}^1$

素因数の和:8272

約数の個数: 16

約数和(自身を含む): 24893568

約数和(自身を除く): 4884007

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8231, 90541, 107003, 139927, 1177033, 1539197, 1819051, 20009561]

約数ペア:

[(1, 20009561), (11, 1819051), (13, 1539197), (17, 1177033), (143, 139927), (187, 107003), (221, 90541), (2431, 8231)]