18921992

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{57689}}^1$

素因数の和:57736

約数の個数: 16

約数和(自身を含む): 36344700

約数和(自身を除く): 17422708

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 57689, 115378, 230756, 461512, 2365249, 4730498, 9460996, 18921992]

約数ペア:

[(1, 18921992), (2, 9460996), (4, 4730498), (8, 2365249), (41, 461512), (82, 230756), (164, 115378), (328, 57689)]