21806085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2141}}^1$

素因数の和:2253

約数の個数: 32

約数和(自身を含む): 40303872

約数和(自身を除く): 18497787

約数列:

[1, 3, 5, 7, 15, 21, 35, 97, 105, 291, 485, 679, 1455, 2037, 2141, 3395, 6423, 10185, 10705, 14987, 32115, 44961, 74935, 207677, 224805, 623031, 1038385, 1453739, 3115155, 4361217, 7268695, 21806085]

約数ペア:

[(1, 21806085), (3, 7268695), (5, 4361217), (7, 3115155), (15, 1453739), (21, 1038385), (35, 623031), (97, 224805), (105, 207677), (291, 74935), (485, 44961), (679, 32115), (1455, 14987), (2037, 10705), (2141, 10185), (3395, 6423)]