20802992

素因数分解:

$2^4\times 7^1\times {\mathrm{281}}^1\times {\mathrm{661}}^1$

素因数の和:957

約数の個数: 40

約数和(自身を含む): 46297632

約数和(自身を除く): 25494640

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 281, 562, 661, 1124, 1322, 1967, 2248, 2644, 3934, 4496, 4627, 5288, 7868, 9254, 10576, 15736, 18508, 31472, 37016, 74032, 185741, 371482, 742964, 1300187, 1485928, 2600374, 2971856, 5200748, 10401496, 20802992]

約数ペア:

[(1, 20802992), (2, 10401496), (4, 5200748), (7, 2971856), (8, 2600374), (14, 1485928), (16, 1300187), (28, 742964), (56, 371482), (112, 185741), (281, 74032), (562, 37016), (661, 31472), (1124, 18508), (1322, 15736), (1967, 10576), (2248, 9254), (2644, 7868), (3934, 5288), (4496, 4627)]