20928873

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43331}}^1$

素因数の和:43364

約数の個数: 16

約数和(自身を含む): 33278976

約数和(自身を除く): 12350103

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43331, 129993, 303317, 909951, 996613, 2989839, 6976291, 20928873]

約数ペア:

[(1, 20928873), (3, 6976291), (7, 2989839), (21, 996613), (23, 909951), (69, 303317), (161, 129993), (483, 43331)]