21570878

素因数分解:

$2^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{2137}}^1$

素因数の和:2256

約数の個数: 24

約数和(自身を含む): 38022192

約数和(自身を除く): 16451314

約数列:

[1, 2, 7, 14, 49, 98, 103, 206, 721, 1442, 2137, 4274, 5047, 10094, 14959, 29918, 104713, 209426, 220111, 440222, 1540777, 3081554, 10785439, 21570878]

約数ペア:

[(1, 21570878), (2, 10785439), (7, 3081554), (14, 1540777), (49, 440222), (98, 220111), (103, 209426), (206, 104713), (721, 29918), (1442, 14959), (2137, 10094), (4274, 5047)]