389747133

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{253247}}^1$

素因数の和:253278

約数の個数: 20

約数和(自身を含む): 612860160

約数和(自身を除く): 223113027

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 253247, 759741, 2279223, 4811693, 6837669, 14435079, 20513007, 43305237, 129915711, 389747133]

約数ペア:

[(1, 389747133), (3, 129915711), (9, 43305237), (19, 20513007), (27, 14435079), (57, 6837669), (81, 4811693), (171, 2279223), (513, 759741), (1539, 253247)]