189441

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:141

約数の個数: 24

約数和(自身を含む): 326144

約数和(自身を除く): 136703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 97, 217, 279, 291, 651, 679, 873, 1953, 2037, 3007, 6111, 9021, 21049, 27063, 63147, 189441]

約数ペア:

[(1, 189441), (3, 63147), (7, 27063), (9, 21049), (21, 9021), (31, 6111), (63, 3007), (93, 2037), (97, 1953), (217, 873), (279, 679), (291, 651)]