21081270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{14341}}^1$

素因数の和:14365

約数の個数: 48

約数和(自身を含む): 58859568

約数和(自身を除く): 37778298

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 14341, 28682, 43023, 71705, 86046, 100387, 143410, 200774, 215115, 301161, 430230, 501935, 602322, 702709, 1003870, 1405418, 1505805, 2108127, 3011610, 3513545, 4216254, 7027090, 10540635, 21081270]

約数ペア:

[(1, 21081270), (2, 10540635), (3, 7027090), (5, 4216254), (6, 3513545), (7, 3011610), (10, 2108127), (14, 1505805), (15, 1405418), (21, 1003870), (30, 702709), (35, 602322), (42, 501935), (49, 430230), (70, 301161), (98, 215115), (105, 200774), (147, 143410), (210, 100387), (245, 86046), (294, 71705), (490, 43023), (735, 28682), (1470, 14341)]