257194518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{86249}}^1$

素因数の和:86332

約数の個数: 32

約数和(自身を含む): 596160000

約数和(自身を除く): 338965482

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 86249, 172498, 258747, 517494, 603743, 1207486, 1811229, 3622458, 6123679, 12247358, 18371037, 36742074, 42865753, 85731506, 128597259, 257194518]

約数ペア:

[(1, 257194518), (2, 128597259), (3, 85731506), (6, 42865753), (7, 36742074), (14, 18371037), (21, 12247358), (42, 6123679), (71, 3622458), (142, 1811229), (213, 1207486), (426, 603743), (497, 517494), (994, 258747), (1491, 172498), (2982, 86249)]