212589027

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{25759}}^1$

素因数の和:25903

約数の個数: 24

約数和(自身を含む): 353633280

約数和(自身を除く): 141044253

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2751, 8253, 25759, 77277, 180313, 231831, 540939, 1622817, 3374429, 10123287, 23621003, 30369861, 70863009, 212589027]

約数ペア:

[(1, 212589027), (3, 70863009), (7, 30369861), (9, 23621003), (21, 10123287), (63, 3374429), (131, 1622817), (393, 540939), (917, 231831), (1179, 180313), (2751, 77277), (8253, 25759)]