209913891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{3301}}^1$

素因数の和:3403

約数の個数: 32

約数和(自身を含む): 319527936

約数和(自身を除く): 109614045

約数列:

[1, 3, 11, 33, 41, 47, 123, 141, 451, 517, 1353, 1551, 1927, 3301, 5781, 9903, 21197, 36311, 63591, 108933, 135341, 155147, 406023, 465441, 1488751, 1706617, 4466253, 5119851, 6361027, 19083081, 69971297, 209913891]

約数ペア:

[(1, 209913891), (3, 69971297), (11, 19083081), (33, 6361027), (41, 5119851), (47, 4466253), (123, 1706617), (141, 1488751), (451, 465441), (517, 406023), (1353, 155147), (1551, 135341), (1927, 108933), (3301, 63591), (5781, 36311), (9903, 21197)]