178897131

素因数分解:

$3^2\times 7^1\times {\mathrm{853}}^1\times {\mathrm{3329}}^1$

素因数の和:4195

約数の個数: 24

約数和(自身を含む): 295757280

約数和(自身を除く): 116860149

約数列:

[1, 3, 7, 9, 21, 63, 853, 2559, 3329, 5971, 7677, 9987, 17913, 23303, 29961, 53739, 69909, 209727, 2839637, 8518911, 19877459, 25556733, 59632377, 178897131]

約数ペア:

[(1, 178897131), (3, 59632377), (7, 25556733), (9, 19877459), (21, 8518911), (63, 2839637), (853, 209727), (2559, 69909), (3329, 53739), (5971, 29961), (7677, 23303), (9987, 17913)]