18867429

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 33696000

約数和(自身を除く): 14828571

約数列:

[1, 3, 7, 9, 21, 23, 29, 63, 69, 87, 161, 203, 207, 261, 449, 483, 609, 667, 1347, 1449, 1827, 2001, 3143, 4041, 4669, 6003, 9429, 10327, 13021, 14007, 28287, 30981, 39063, 42021, 72289, 91147, 92943, 117189, 216867, 273441, 299483, 650601, 820323, 898449, 2096381, 2695347, 6289143, 18867429]

約数ペア:

[(1, 18867429), (3, 6289143), (7, 2695347), (9, 2096381), (21, 898449), (23, 820323), (29, 650601), (63, 299483), (69, 273441), (87, 216867), (161, 117189), (203, 92943), (207, 91147), (261, 72289), (449, 42021), (483, 39063), (609, 30981), (667, 28287), (1347, 14007), (1449, 13021), (1827, 10327), (2001, 9429), (3143, 6003), (4041, 4669)]