20417868

素因数分解:

$2^2\times 3^2\times {\mathrm{197}}^1\times {\mathrm{2879}}^1$

素因数の和:3086

約数の個数: 36

約数和(自身を含む): 51891840

約数和(自身を除く): 31473972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 197, 394, 591, 788, 1182, 1773, 2364, 2879, 3546, 5758, 7092, 8637, 11516, 17274, 25911, 34548, 51822, 103644, 567163, 1134326, 1701489, 2268652, 3402978, 5104467, 6805956, 10208934, 20417868]

約数ペア:

[(1, 20417868), (2, 10208934), (3, 6805956), (4, 5104467), (6, 3402978), (9, 2268652), (12, 1701489), (18, 1134326), (36, 567163), (197, 103644), (394, 51822), (591, 34548), (788, 25911), (1182, 17274), (1773, 11516), (2364, 8637), (2879, 7092), (3546, 5758)]