20386672

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{311}}^1$

素因数の和:577

約数の個数: 40

約数和(自身を含む): 42131232

約数和(自身を除く): 21744560

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 241, 272, 311, 482, 622, 964, 1244, 1928, 2488, 3856, 4097, 4976, 5287, 8194, 10574, 16388, 21148, 32776, 42296, 65552, 74951, 84592, 149902, 299804, 599608, 1199216, 1274167, 2548334, 5096668, 10193336, 20386672]

約数ペア:

[(1, 20386672), (2, 10193336), (4, 5096668), (8, 2548334), (16, 1274167), (17, 1199216), (34, 599608), (68, 299804), (136, 149902), (241, 84592), (272, 74951), (311, 65552), (482, 42296), (622, 32776), (964, 21148), (1244, 16388), (1928, 10574), (2488, 8194), (3856, 5287), (4097, 4976)]