20512694884

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{251}}^1\times {\mathrm{168851}}^1$

素因数の和:169128

約数の個数: 36

約数和(自身を含む): 39614705424

約数和(自身を除く): 19102010540

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 251, 484, 502, 1004, 2761, 5522, 11044, 30371, 60742, 121484, 168851, 337702, 675404, 1857361, 3714722, 7429444, 20430971, 40861942, 42381601, 81723884, 84763202, 169526404, 466197611, 932395222, 1864790444, 5128173721, 10256347442, 20512694884]

約数ペア:

[(1, 20512694884), (2, 10256347442), (4, 5128173721), (11, 1864790444), (22, 932395222), (44, 466197611), (121, 169526404), (242, 84763202), (251, 81723884), (484, 42381601), (502, 40861942), (1004, 20430971), (2761, 7429444), (5522, 3714722), (11044, 1857361), (30371, 675404), (60742, 337702), (121484, 168851)]