21107658

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 50424192

約数和(自身を除く): 29316534

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 73, 78, 143, 146, 219, 286, 337, 429, 438, 674, 803, 858, 949, 1011, 1606, 1898, 2022, 2409, 2847, 3707, 4381, 4818, 5694, 7414, 8762, 10439, 11121, 13143, 20878, 22242, 24601, 26286, 31317, 48191, 49202, 62634, 73803, 96382, 144573, 147606, 270611, 289146, 319813, 541222, 639626, 811833, 959439, 1623666, 1918878, 3517943, 7035886, 10553829, 21107658]

約数ペア:

[(1, 21107658), (2, 10553829), (3, 7035886), (6, 3517943), (11, 1918878), (13, 1623666), (22, 959439), (26, 811833), (33, 639626), (39, 541222), (66, 319813), (73, 289146), (78, 270611), (143, 147606), (146, 144573), (219, 96382), (286, 73803), (337, 62634), (429, 49202), (438, 48191), (674, 31317), (803, 26286), (858, 24601), (949, 22242), (1011, 20878), (1606, 13143), (1898, 11121), (2022, 10439), (2409, 8762), (2847, 7414), (3707, 5694), (4381, 4818)]