227920511

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 299575584

約数和(自身を除く): 71655073

約数列:

[1, 7, 13, 43, 49, 53, 91, 157, 301, 371, 559, 637, 689, 1099, 2041, 2107, 2279, 2597, 3913, 4823, 6751, 7693, 8321, 14287, 15953, 27391, 29627, 33761, 47257, 58247, 87763, 100009, 108173, 111671, 207389, 330799, 357803, 407729, 614341, 757211, 1451723, 2504621, 4300387, 4651439, 5300477, 17532347, 32560073, 227920511]

約数ペア:

[(1, 227920511), (7, 32560073), (13, 17532347), (43, 5300477), (49, 4651439), (53, 4300387), (91, 2504621), (157, 1451723), (301, 757211), (371, 614341), (559, 407729), (637, 357803), (689, 330799), (1099, 207389), (2041, 111671), (2107, 108173), (2279, 100009), (2597, 87763), (3913, 58247), (4823, 47257), (6751, 33761), (7693, 29627), (8321, 27391), (14287, 15953)]