81538919

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{373}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 108573696

約数和(自身を除く): 27034777

約数列:

[1, 7, 11, 17, 77, 119, 167, 187, 373, 1169, 1309, 1837, 2611, 2839, 4103, 6341, 12859, 19873, 28721, 31229, 44387, 62291, 69751, 218603, 436037, 488257, 685201, 1058947, 4796407, 7412629, 11648417, 81538919]

約数ペア:

[(1, 81538919), (7, 11648417), (11, 7412629), (17, 4796407), (77, 1058947), (119, 685201), (167, 488257), (187, 436037), (373, 218603), (1169, 69751), (1309, 62291), (1837, 44387), (2611, 31229), (2839, 28721), (4103, 19873), (6341, 12859)]