81977609

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{337}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 103833600

約数和(自身を除く): 21855991

約数列:

[1, 7, 19, 31, 59, 133, 217, 337, 413, 589, 1121, 1829, 2359, 4123, 6403, 7847, 10447, 12803, 19883, 34751, 44821, 73129, 139181, 198493, 243257, 377777, 616373, 1389451, 2644439, 4314611, 11711087, 81977609]

約数ペア:

[(1, 81977609), (7, 11711087), (19, 4314611), (31, 2644439), (59, 1389451), (133, 616373), (217, 377777), (337, 243257), (413, 198493), (589, 139181), (1121, 73129), (1829, 44821), (2359, 34751), (4123, 19883), (6403, 12803), (7847, 10447)]