18981039

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:795

約数の個数: 32

約数和(自身を含む): 31850496

約数和(自身を除く): 12869457

約数列:

[1, 3, 7, 11, 21, 33, 77, 127, 231, 381, 647, 889, 1397, 1941, 2667, 4191, 4529, 7117, 9779, 13587, 21351, 29337, 49819, 82169, 149457, 246507, 575183, 903859, 1725549, 2711577, 6327013, 18981039]

約数ペア:

[(1, 18981039), (3, 6327013), (7, 2711577), (11, 1725549), (21, 903859), (33, 575183), (77, 246507), (127, 149457), (231, 82169), (381, 49819), (647, 29337), (889, 21351), (1397, 13587), (1941, 9779), (2667, 7117), (4191, 4529)]