20785845482644

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{393999649}}^1$

素因数の和:393999784

約数の個数: 36

約数和(自身を含む): 40349504156500

約数和(自身を除く): 19563658673856

約数列:

[1, 2, 4, 11, 22, 44, 109, 121, 218, 242, 436, 484, 1199, 2398, 4796, 13189, 26378, 52756, 393999649, 787999298, 1575998596, 4333996139, 8667992278, 17335984556, 42945961741, 47673957529, 85891923482, 95347915058, 171783846964, 190695830116, 472405579151, 944811158302, 1889622316604, 5196461370661, 10392922741322, 20785845482644]

約数ペア:

[(1, 20785845482644), (2, 10392922741322), (4, 5196461370661), (11, 1889622316604), (22, 944811158302), (44, 472405579151), (109, 190695830116), (121, 171783846964), (218, 95347915058), (242, 85891923482), (436, 47673957529), (484, 42945961741), (1199, 17335984556), (2398, 8667992278), (4796, 4333996139), (13189, 1575998596), (26378, 787999298), (52756, 393999649)]