21386850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{8387}}^1$

素因数の和:8419

約数の個数: 48

約数和(自身を含む): 56166048

約数和(自身を除く): 34779198

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 150, 170, 255, 425, 510, 850, 1275, 2550, 8387, 16774, 25161, 41935, 50322, 83870, 125805, 142579, 209675, 251610, 285158, 419350, 427737, 629025, 712895, 855474, 1258050, 1425790, 2138685, 3564475, 4277370, 7128950, 10693425, 21386850]

約数ペア:

[(1, 21386850), (2, 10693425), (3, 7128950), (5, 4277370), (6, 3564475), (10, 2138685), (15, 1425790), (17, 1258050), (25, 855474), (30, 712895), (34, 629025), (50, 427737), (51, 419350), (75, 285158), (85, 251610), (102, 209675), (150, 142579), (170, 125805), (255, 83870), (425, 50322), (510, 41935), (850, 25161), (1275, 16774), (2550, 8387)]