18027737

素因数分解:

$7^3\times {\mathrm{13}}^2\times {\mathrm{311}}^1$

素因数の和:358

約数の個数: 24

約数和(自身を含む): 22838400

約数和(自身を除く): 4810663

約数列:

[1, 7, 13, 49, 91, 169, 311, 343, 637, 1183, 2177, 4043, 4459, 8281, 15239, 28301, 52559, 57967, 106673, 198107, 367913, 1386749, 2575391, 18027737]

約数ペア:

[(1, 18027737), (7, 2575391), (13, 1386749), (49, 367913), (91, 198107), (169, 106673), (311, 57967), (343, 52559), (637, 28301), (1183, 15239), (2177, 8281), (4043, 4459)]