21494900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{30707}}^1$

素因数の和:30728

約数の個数: 36

約数和(自身を含む): 53309088

約数和(自身を除く): 31814188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 30707, 61414, 122828, 153535, 214949, 307070, 429898, 614140, 767675, 859796, 1074745, 1535350, 2149490, 3070700, 4298980, 5373725, 10747450, 21494900]

約数ペア:

[(1, 21494900), (2, 10747450), (4, 5373725), (5, 4298980), (7, 3070700), (10, 2149490), (14, 1535350), (20, 1074745), (25, 859796), (28, 767675), (35, 614140), (50, 429898), (70, 307070), (100, 214949), (140, 153535), (175, 122828), (350, 61414), (700, 30707)]