208022157

素因数分解:

$3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{15649}}^1$

素因数の和:15873

約数の個数: 24

約数和(自身を含む): 345051200

約数和(自身を除く): 137029043

約数列:

[1, 3, 7, 9, 21, 63, 211, 633, 1477, 1899, 4431, 13293, 15649, 46947, 109543, 140841, 328629, 985887, 3301939, 9905817, 23113573, 29717451, 69340719, 208022157]

約数ペア:

[(1, 208022157), (3, 69340719), (7, 29717451), (9, 23113573), (21, 9905817), (63, 3301939), (211, 985887), (633, 328629), (1477, 140841), (1899, 109543), (4431, 46947), (13293, 15649)]