21088858

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:574

約数の個数: 32

約数和(自身を含む): 37785600

約数和(自身を除く): 16696742

約数列:

[1, 2, 7, 14, 29, 58, 127, 203, 254, 406, 409, 818, 889, 1778, 2863, 3683, 5726, 7366, 11861, 23722, 25781, 51562, 51943, 83027, 103886, 166054, 363601, 727202, 1506347, 3012694, 10544429, 21088858]

約数ペア:

[(1, 21088858), (2, 10544429), (7, 3012694), (14, 1506347), (29, 727202), (58, 363601), (127, 166054), (203, 103886), (254, 83027), (406, 51943), (409, 51562), (818, 25781), (889, 23722), (1778, 11861), (2863, 7366), (3683, 5726)]