18219381

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{3719}}^1$

素因数の和:3816

約数の個数: 16

約数和(自身を含む): 25712640

約数和(自身を除く): 7493259

約数列:

[1, 3, 23, 69, 71, 213, 1633, 3719, 4899, 11157, 85537, 256611, 264049, 792147, 6073127, 18219381]

約数ペア:

[(1, 18219381), (3, 6073127), (23, 792147), (69, 264049), (71, 256611), (213, 85537), (1633, 11157), (3719, 4899)]