291255419

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 369976320

約数和(自身を除く): 78720901

約数列:

[1, 7, 13, 61, 71, 91, 427, 497, 739, 793, 923, 4331, 5173, 5551, 6461, 9607, 30317, 45079, 52469, 56303, 67249, 315553, 367283, 394121, 586027, 682097, 3200609, 4102189, 4774679, 22404263, 41607917, 291255419]

約数ペア:

[(1, 291255419), (7, 41607917), (13, 22404263), (61, 4774679), (71, 4102189), (91, 3200609), (427, 682097), (497, 586027), (739, 394121), (793, 367283), (923, 315553), (4331, 67249), (5173, 56303), (5551, 52469), (6461, 45079), (9607, 30317)]