21246945

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32941}}^1$

素因数の和:32992

約数の個数: 16

約数和(自身を含む): 34786752

約数和(自身を除く): 13539807

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32941, 98823, 164705, 494115, 1416463, 4249389, 7082315, 21246945]

約数ペア:

[(1, 21246945), (3, 7082315), (5, 4249389), (15, 1416463), (43, 494115), (129, 164705), (215, 98823), (645, 32941)]