128207849

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{4091}}^1$

素因数の和:4157

約数の個数: 24

約数和(自身を含む): 165447744

約数和(自身を除く): 37239895

約数列:

[1, 7, 11, 37, 77, 121, 259, 407, 847, 2849, 4091, 4477, 28637, 31339, 45001, 151367, 315007, 495011, 1059569, 1665037, 3465077, 11655259, 18315407, 128207849]

約数ペア:

[(1, 128207849), (7, 18315407), (11, 11655259), (37, 3465077), (77, 1665037), (121, 1059569), (259, 495011), (407, 315007), (847, 151367), (2849, 45001), (4091, 31339), (4477, 28637)]