21444400

素因数分解:

$2^4\times 5^2\times {\mathrm{53611}}^1$

素因数の和:53629

約数の個数: 30

約数和(自身を含む): 51521132

約数和(自身を除く): 30076732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53611, 107222, 214444, 268055, 428888, 536110, 857776, 1072220, 1340275, 2144440, 2680550, 4288880, 5361100, 10722200, 21444400]

約数ペア:

[(1, 21444400), (2, 10722200), (4, 5361100), (5, 4288880), (8, 2680550), (10, 2144440), (16, 1340275), (20, 1072220), (25, 857776), (40, 536110), (50, 428888), (80, 268055), (100, 214444), (200, 107222), (400, 53611)]