20484471

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15991}}^1$

素因数の和:16062

約数の個数: 16

約数和(自身を含む): 31728128

約数和(自身を除く): 11243657

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15991, 47973, 111937, 335811, 975451, 2926353, 6828157, 20484471]

約数ペア:

[(1, 20484471), (3, 6828157), (7, 2926353), (21, 975451), (61, 335811), (183, 111937), (427, 47973), (1281, 15991)]