15796781

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 21762048

約数和(自身を除く): 5965267

約数列:

[1, 7, 11, 13, 43, 77, 91, 143, 301, 367, 473, 559, 1001, 2569, 3311, 3913, 4037, 4771, 6149, 15781, 28259, 33397, 43043, 52481, 110467, 173591, 205153, 367367, 1215137, 1436071, 2256683, 15796781]

約数ペア:

[(1, 15796781), (7, 2256683), (11, 1436071), (13, 1215137), (43, 367367), (77, 205153), (91, 173591), (143, 110467), (301, 52481), (367, 43043), (473, 33397), (559, 28259), (1001, 15781), (2569, 6149), (3311, 4771), (3913, 4037)]