213717861

素因数分解:

$3^2\times 7^2\times {\mathrm{484621}}^1$

素因数の和:484641

約数の個数: 18

約数和(自身を含む): 359104902

約数和(自身を除く): 145387041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 484621, 1453863, 3392347, 4361589, 10177041, 23746429, 30531123, 71239287, 213717861]

約数ペア:

[(1, 213717861), (3, 71239287), (7, 30531123), (9, 23746429), (21, 10177041), (49, 4361589), (63, 3392347), (147, 1453863), (441, 484621)]