18245619

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2657}}^1$

素因数の和:2779

約数の個数: 24

約数和(自身を含む): 30407520

約数和(自身を除く): 12161901

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 2657, 6867, 7971, 18599, 23913, 55797, 167391, 289613, 868839, 2027291, 2606517, 6081873, 18245619]

約数ペア:

[(1, 18245619), (3, 6081873), (7, 2606517), (9, 2027291), (21, 868839), (63, 289613), (109, 167391), (327, 55797), (763, 23913), (981, 18599), (2289, 7971), (2657, 6867)]