20908449

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 56

約数和(自身を含む): 34626240

約数和(自身を除く): 13717791

約数列:

[1, 3, 9, 23, 27, 29, 43, 69, 81, 87, 129, 207, 243, 261, 387, 621, 667, 729, 783, 989, 1161, 1247, 1863, 2001, 2349, 2967, 3483, 3741, 5589, 6003, 7047, 8901, 10449, 11223, 16767, 18009, 21141, 26703, 28681, 31347, 33669, 54027, 80109, 86043, 101007, 162081, 240327, 258129, 303021, 486243, 720981, 774387, 909063, 2323161, 6969483, 20908449]

約数ペア:

[(1, 20908449), (3, 6969483), (9, 2323161), (23, 909063), (27, 774387), (29, 720981), (43, 486243), (69, 303021), (81, 258129), (87, 240327), (129, 162081), (207, 101007), (243, 86043), (261, 80109), (387, 54027), (621, 33669), (667, 31347), (729, 28681), (783, 26703), (989, 21141), (1161, 18009), (1247, 16767), (1863, 11223), (2001, 10449), (2349, 8901), (2967, 7047), (3483, 6003), (3741, 5589)]