20731097168

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{699241}}^1$

素因数の和:699375

約数の個数: 40

約数和(自身を含む): 42919473960

約数和(自身を除く): 22188376792

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 109, 136, 218, 272, 436, 872, 1744, 1853, 3706, 7412, 14824, 29648, 699241, 1398482, 2796964, 5593928, 11187856, 11887097, 23774194, 47548388, 76217269, 95096776, 152434538, 190193552, 304869076, 609738152, 1219476304, 1295693573, 2591387146, 5182774292, 10365548584, 20731097168]

約数ペア:

[(1, 20731097168), (2, 10365548584), (4, 5182774292), (8, 2591387146), (16, 1295693573), (17, 1219476304), (34, 609738152), (68, 304869076), (109, 190193552), (136, 152434538), (218, 95096776), (272, 76217269), (436, 47548388), (872, 23774194), (1744, 11887097), (1853, 11187856), (3706, 5593928), (7412, 2796964), (14824, 1398482), (29648, 699241)]