19140891

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 34062336

約数和(自身を除く): 14921445

約数列:

[1, 3, 7, 11, 21, 33, 41, 43, 47, 77, 123, 129, 141, 231, 287, 301, 329, 451, 473, 517, 861, 903, 987, 1353, 1419, 1551, 1763, 1927, 2021, 3157, 3311, 3619, 5289, 5781, 6063, 9471, 9933, 10857, 12341, 13489, 14147, 19393, 21197, 22231, 37023, 40467, 42441, 58179, 63591, 66693, 82861, 135751, 148379, 155617, 248583, 407253, 445137, 466851, 580027, 911471, 1740081, 2734413, 6380297, 19140891]

約数ペア:

[(1, 19140891), (3, 6380297), (7, 2734413), (11, 1740081), (21, 911471), (33, 580027), (41, 466851), (43, 445137), (47, 407253), (77, 248583), (123, 155617), (129, 148379), (141, 135751), (231, 82861), (287, 66693), (301, 63591), (329, 58179), (451, 42441), (473, 40467), (517, 37023), (861, 22231), (903, 21197), (987, 19393), (1353, 14147), (1419, 13489), (1551, 12341), (1763, 10857), (1927, 9933), (2021, 9471), (3157, 6063), (3311, 5781), (3619, 5289)]