1261491

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 2162688

約数和(自身を除く): 901197

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 127, 129, 231, 301, 381, 473, 889, 903, 1397, 1419, 2667, 3311, 4191, 5461, 9779, 9933, 16383, 29337, 38227, 60071, 114681, 180213, 420497, 1261491]

約数ペア:

[(1, 1261491), (3, 420497), (7, 180213), (11, 114681), (21, 60071), (33, 38227), (43, 29337), (77, 16383), (127, 9933), (129, 9779), (231, 5461), (301, 4191), (381, 3311), (473, 2667), (889, 1419), (903, 1397)]