20529366

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 49061376

約数和(自身を除く): 28532010

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 71, 78, 142, 143, 213, 286, 337, 426, 429, 674, 781, 858, 923, 1011, 1562, 1846, 2022, 2343, 2769, 3707, 4381, 4686, 5538, 7414, 8762, 10153, 11121, 13143, 20306, 22242, 23927, 26286, 30459, 47854, 48191, 60918, 71781, 96382, 143562, 144573, 263197, 289146, 311051, 526394, 622102, 789591, 933153, 1579182, 1866306, 3421561, 6843122, 10264683, 20529366]

約数ペア:

[(1, 20529366), (2, 10264683), (3, 6843122), (6, 3421561), (11, 1866306), (13, 1579182), (22, 933153), (26, 789591), (33, 622102), (39, 526394), (66, 311051), (71, 289146), (78, 263197), (142, 144573), (143, 143562), (213, 96382), (286, 71781), (337, 60918), (426, 48191), (429, 47854), (674, 30459), (781, 26286), (858, 23927), (923, 22242), (1011, 20306), (1562, 13143), (1846, 11121), (2022, 10153), (2343, 8762), (2769, 7414), (3707, 5538), (4381, 4686)]