28969927

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1$

素因数の和:128

約数の個数: 36

約数和(自身を含む): 37731720

約数和(自身を除く): 8761793

約数列:

[1, 7, 19, 29, 37, 49, 133, 203, 259, 551, 703, 841, 931, 1073, 1421, 1813, 3857, 4921, 5887, 7511, 15979, 20387, 26999, 31117, 34447, 41209, 52577, 111853, 142709, 217819, 591223, 782971, 998963, 1524733, 4138561, 28969927]

約数ペア:

[(1, 28969927), (7, 4138561), (19, 1524733), (29, 998963), (37, 782971), (49, 591223), (133, 217819), (203, 142709), (259, 111853), (551, 52577), (703, 41209), (841, 34447), (931, 31117), (1073, 26999), (1421, 20387), (1813, 15979), (3857, 7511), (4921, 5887)]