18518556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{491}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 49593600

約数和(自身を除く): 31075044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 449, 491, 898, 982, 1347, 1473, 1796, 1964, 2694, 2946, 3143, 3437, 5388, 5892, 6286, 6874, 9429, 10311, 12572, 13748, 18858, 20622, 37716, 41244, 220459, 440918, 661377, 881836, 1322754, 1543213, 2645508, 3086426, 4629639, 6172852, 9259278, 18518556]

約数ペア:

[(1, 18518556), (2, 9259278), (3, 6172852), (4, 4629639), (6, 3086426), (7, 2645508), (12, 1543213), (14, 1322754), (21, 881836), (28, 661377), (42, 440918), (84, 220459), (449, 41244), (491, 37716), (898, 20622), (982, 18858), (1347, 13748), (1473, 12572), (1796, 10311), (1964, 9429), (2694, 6874), (2946, 6286), (3143, 5892), (3437, 5388)]