20284131

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6949}}^1$

素因数の和:7098

約数の個数: 16

約数和(自身を含む): 31136000

約数和(自身を除く): 10851869

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6949, 20847, 48643, 145929, 965911, 2897733, 6761377, 20284131]

約数ペア:

[(1, 20284131), (3, 6761377), (7, 2897733), (21, 965911), (139, 145929), (417, 48643), (973, 20847), (2919, 6949)]