20178836853

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^2\times {\mathrm{100271}}^1$

素因数の和:100362

約数の個数: 36

約数和(自身を含む): 32166856512

約数和(自身を除く): 11988019659

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1369, 1813, 4107, 5439, 9583, 28749, 67081, 100271, 201243, 300813, 701897, 2105691, 3710027, 4913279, 11130081, 14739837, 25970189, 77910567, 137270999, 181791323, 411812997, 545373969, 960896993, 2882690979, 6726278951, 20178836853]

約数ペア:

[(1, 20178836853), (3, 6726278951), (7, 2882690979), (21, 960896993), (37, 545373969), (49, 411812997), (111, 181791323), (147, 137270999), (259, 77910567), (777, 25970189), (1369, 14739837), (1813, 11130081), (4107, 4913279), (5439, 3710027), (9583, 2105691), (28749, 701897), (67081, 300813), (100271, 201243)]