21965508

素因数分解:

$2^2\times 3^2\times {\mathrm{691}}^1\times {\mathrm{883}}^1$

素因数の和:1584

約数の個数: 36

約数和(自身を含む): 55667248

約数和(自身を除く): 33701740

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 691, 883, 1382, 1766, 2073, 2649, 2764, 3532, 4146, 5298, 6219, 7947, 8292, 10596, 12438, 15894, 24876, 31788, 610153, 1220306, 1830459, 2440612, 3660918, 5491377, 7321836, 10982754, 21965508]

約数ペア:

[(1, 21965508), (2, 10982754), (3, 7321836), (4, 5491377), (6, 3660918), (9, 2440612), (12, 1830459), (18, 1220306), (36, 610153), (691, 31788), (883, 24876), (1382, 15894), (1766, 12438), (2073, 10596), (2649, 8292), (2764, 7947), (3532, 6219), (4146, 5298)]