21051270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13759}}^1$

素因数の和:13789

約数の個数: 48

約数和(自身を含む): 57957120

約数和(自身を除く): 36905850

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 510, 765, 1530, 13759, 27518, 41277, 68795, 82554, 123831, 137590, 206385, 233903, 247662, 412770, 467806, 619155, 701709, 1169515, 1238310, 1403418, 2105127, 2339030, 3508545, 4210254, 7017090, 10525635, 21051270]

約数ペア:

[(1, 21051270), (2, 10525635), (3, 7017090), (5, 4210254), (6, 3508545), (9, 2339030), (10, 2105127), (15, 1403418), (17, 1238310), (18, 1169515), (30, 701709), (34, 619155), (45, 467806), (51, 412770), (85, 247662), (90, 233903), (102, 206385), (153, 137590), (170, 123831), (255, 82554), (306, 68795), (510, 41277), (765, 27518), (1530, 13759)]