18971343

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2477}}^1$

素因数の和:2543

約数の個数: 24

約数和(自身を含む): 29379168

約数和(自身を除く): 10407825

約数列:

[1, 3, 9, 23, 37, 69, 111, 207, 333, 851, 2477, 2553, 7431, 7659, 22293, 56971, 91649, 170913, 274947, 512739, 824841, 2107927, 6323781, 18971343]

約数ペア:

[(1, 18971343), (3, 6323781), (9, 2107927), (23, 824841), (37, 512739), (69, 274947), (111, 170913), (207, 91649), (333, 56971), (851, 22293), (2477, 7659), (2553, 7431)]