21809028

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{106907}}^1$

素因数の和:106931

約数の個数: 24

約数和(自身を含む): 53881632

約数和(自身を除く): 32072604

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 106907, 213814, 320721, 427628, 641442, 1282884, 1817419, 3634838, 5452257, 7269676, 10904514, 21809028]

約数ペア:

[(1, 21809028), (2, 10904514), (3, 7269676), (4, 5452257), (6, 3634838), (12, 1817419), (17, 1282884), (34, 641442), (51, 427628), (68, 320721), (102, 213814), (204, 106907)]