21139722

素因数分解:

$2^1\times 3^2\times {\mathrm{251}}^1\times {\mathrm{4679}}^1$

素因数の和:4938

約数の個数: 24

約数和(自身を含む): 45995040

約数和(自身を除く): 24855318

約数列:

[1, 2, 3, 6, 9, 18, 251, 502, 753, 1506, 2259, 4518, 4679, 9358, 14037, 28074, 42111, 84222, 1174429, 2348858, 3523287, 7046574, 10569861, 21139722]

約数ペア:

[(1, 21139722), (2, 10569861), (3, 7046574), (6, 3523287), (9, 2348858), (18, 1174429), (251, 84222), (502, 42111), (753, 28074), (1506, 14037), (2259, 9358), (4518, 4679)]