21329811

素因数分解:

$3^8\times {\mathrm{3251}}^1$

素因数の和:3275

約数の個数: 18

約数和(自身を含む): 32002932

約数和(自身を除く): 10673121

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 3251, 6561, 9753, 29259, 87777, 263331, 789993, 2369979, 7109937, 21329811]

約数ペア:

[(1, 21329811), (3, 7109937), (9, 2369979), (27, 789993), (81, 263331), (243, 87777), (729, 29259), (2187, 9753), (3251, 6561)]