21758373

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 39975936

約数和(自身を除く): 18217563

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 63, 91, 93, 117, 217, 273, 279, 403, 651, 819, 857, 1209, 1953, 2571, 2821, 3627, 5999, 7713, 8463, 11141, 17997, 25389, 26567, 33423, 53991, 77987, 79701, 100269, 185969, 233961, 239103, 345371, 557907, 701883, 1036113, 1673721, 2417597, 3108339, 7252791, 21758373]

約数ペア:

[(1, 21758373), (3, 7252791), (7, 3108339), (9, 2417597), (13, 1673721), (21, 1036113), (31, 701883), (39, 557907), (63, 345371), (91, 239103), (93, 233961), (117, 185969), (217, 100269), (273, 79701), (279, 77987), (403, 53991), (651, 33423), (819, 26567), (857, 25389), (1209, 17997), (1953, 11141), (2571, 8463), (2821, 7713), (3627, 5999)]