20969896

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1297}}^1$

素因数の和:1393

約数の個数: 32

約数和(自身を含む): 41120640

約数和(自身を除く): 20150744

約数列:

[1, 2, 4, 8, 43, 47, 86, 94, 172, 188, 344, 376, 1297, 2021, 2594, 4042, 5188, 8084, 10376, 16168, 55771, 60959, 111542, 121918, 223084, 243836, 446168, 487672, 2621237, 5242474, 10484948, 20969896]

約数ペア:

[(1, 20969896), (2, 10484948), (4, 5242474), (8, 2621237), (43, 487672), (47, 446168), (86, 243836), (94, 223084), (172, 121918), (188, 111542), (344, 60959), (376, 55771), (1297, 16168), (2021, 10376), (2594, 8084), (4042, 5188)]