21304800009

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{4561079}}^1$

素因数の和:4561261

約数の個数: 16

約数和(自身を含む): 31745116800

約数和(自身を除く): 10440316791

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4671, 4561079, 13683237, 41049711, 123149133, 789066667, 2367200001, 7101600003, 21304800009]

約数ペア:

[(1, 21304800009), (3, 7101600003), (9, 2367200001), (27, 789066667), (173, 123149133), (519, 41049711), (1557, 13683237), (4671, 4561079)]