5250987

素因数分解:

$3^7\times 7^4$

素因数の和:49

約数の個数: 40

約数和(自身を含む): 9187280

約数和(自身を除く): 3936293

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 343, 441, 567, 729, 1029, 1323, 1701, 2187, 2401, 3087, 3969, 5103, 7203, 9261, 11907, 15309, 21609, 27783, 35721, 64827, 83349, 107163, 194481, 250047, 583443, 750141, 1750329, 5250987]

約数ペア:

[(1, 5250987), (3, 1750329), (7, 750141), (9, 583443), (21, 250047), (27, 194481), (49, 107163), (63, 83349), (81, 64827), (147, 35721), (189, 27783), (243, 21609), (343, 15309), (441, 11907), (567, 9261), (729, 7203), (1029, 5103), (1323, 3969), (1701, 3087), (2187, 2401)]