28087829

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 37713024

約数和(自身を除く): 9625195

約数列:

[1, 7, 11, 31, 41, 49, 77, 217, 287, 341, 451, 539, 1271, 1519, 1681, 2009, 2387, 3157, 8897, 11767, 13981, 16709, 18491, 22099, 52111, 62279, 82369, 97867, 129437, 364777, 573221, 685069, 906059, 2553439, 4012547, 28087829]

約数ペア:

[(1, 28087829), (7, 4012547), (11, 2553439), (31, 906059), (41, 685069), (49, 573221), (77, 364777), (217, 129437), (287, 97867), (341, 82369), (451, 62279), (539, 52111), (1271, 22099), (1519, 18491), (1681, 16709), (2009, 13981), (2387, 11767), (3157, 8897)]