19115020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23311}}^1$

素因数の和:23361

約数の個数: 24

約数和(自身を含む): 41122368

約数和(自身を除く): 22007348

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23311, 46622, 93244, 116555, 233110, 466220, 955751, 1911502, 3823004, 4778755, 9557510, 19115020]

約数ペア:

[(1, 19115020), (2, 9557510), (4, 4778755), (5, 3823004), (10, 1911502), (20, 955751), (41, 466220), (82, 233110), (164, 116555), (205, 93244), (410, 46622), (820, 23311)]