20784939

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1871}}^1$

素因数の和:1927

約数の個数: 24

約数和(自身を含む): 33126912

約数和(自身を除く): 12341973

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 529, 1587, 1871, 3703, 5613, 11109, 13097, 39291, 43033, 129099, 301231, 903693, 989759, 2969277, 6928313, 20784939]

約数ペア:

[(1, 20784939), (3, 6928313), (7, 2969277), (21, 989759), (23, 903693), (69, 301231), (161, 129099), (483, 43033), (529, 39291), (1587, 13097), (1871, 11109), (3703, 5613)]