18864016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 38997504

約数和(自身を除く): 20133488

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 223, 272, 311, 446, 622, 892, 1244, 1784, 2488, 3568, 3791, 4976, 5287, 7582, 10574, 15164, 21148, 30328, 42296, 60656, 69353, 84592, 138706, 277412, 554824, 1109648, 1179001, 2358002, 4716004, 9432008, 18864016]

約数ペア:

[(1, 18864016), (2, 9432008), (4, 4716004), (8, 2358002), (16, 1179001), (17, 1109648), (34, 554824), (68, 277412), (136, 138706), (223, 84592), (272, 69353), (311, 60656), (446, 42296), (622, 30328), (892, 21148), (1244, 15164), (1784, 10574), (2488, 7582), (3568, 5287), (3791, 4976)]