21976689

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{9601}}^1$

素因数の和:9720

約数の個数: 16

約数和(自身を含む): 33799040

約数和(自身を除く): 11822351

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 9601, 28803, 67207, 201621, 1046509, 3139527, 7325563, 21976689]

約数ペア:

[(1, 21976689), (3, 7325563), (7, 3139527), (21, 1046509), (109, 201621), (327, 67207), (763, 28803), (2289, 9601)]