209315211

素因数分解:

$3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{12601}}^1$

素因数の和:12731

約数の個数: 24

約数和(自身を含む): 327551184

約数和(自身を除く): 118235973

約数列:

[1, 3, 7, 21, 49, 113, 147, 339, 791, 2373, 5537, 12601, 16611, 37803, 88207, 264621, 617449, 1423913, 1852347, 4271739, 9967391, 29902173, 69771737, 209315211]

約数ペア:

[(1, 209315211), (3, 69771737), (7, 29902173), (21, 9967391), (49, 4271739), (113, 1852347), (147, 1423913), (339, 617449), (791, 264621), (2373, 88207), (5537, 37803), (12601, 16611)]