287339913

素因数分解:

$3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{11971}}^1$

素因数の和:12114

約数の個数: 32

約数和(自身を含む): 490373120

約数和(自身を除く): 203033207

約数列:

[1, 3, 7, 9, 21, 27, 63, 127, 189, 381, 889, 1143, 2667, 3429, 8001, 11971, 24003, 35913, 83797, 107739, 251391, 323217, 754173, 1520317, 2262519, 4560951, 10642219, 13682853, 31926657, 41048559, 95779971, 287339913]

約数ペア:

[(1, 287339913), (3, 95779971), (7, 41048559), (9, 31926657), (21, 13682853), (27, 10642219), (63, 4560951), (127, 2262519), (189, 1520317), (381, 754173), (889, 323217), (1143, 251391), (2667, 107739), (3429, 83797), (8001, 35913), (11971, 24003)]