20415297

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15937}}^1$

素因数の和:16008

約数の個数: 16

約数和(自身を含む): 31620992

約数和(自身を除く): 11205695

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15937, 47811, 111559, 334677, 972157, 2916471, 6805099, 20415297]

約数ペア:

[(1, 20415297), (3, 6805099), (7, 2916471), (21, 972157), (61, 334677), (183, 111559), (427, 47811), (1281, 15937)]