20808515576

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{9000223}}^1$

素因数の和:9000263

約数の個数: 24

約数和(自身を含む): 41446031520

約数和(自身を除く): 20637515944

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 9000223, 18000446, 36000892, 72001784, 153003791, 306007582, 612015164, 1224030328, 2601064447, 5202128894, 10404257788, 20808515576]

約数ペア:

[(1, 20808515576), (2, 10404257788), (4, 5202128894), (8, 2601064447), (17, 1224030328), (34, 612015164), (68, 306007582), (136, 153003791), (289, 72001784), (578, 36000892), (1156, 18000446), (2312, 9000223)]