21453800

素因数分解:

$2^3\times 5^2\times {\mathrm{107269}}^1$

素因数の和:107285

約数の個数: 24

約数和(自身を含む): 49880550

約数和(自身を除く): 28426750

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 107269, 214538, 429076, 536345, 858152, 1072690, 2145380, 2681725, 4290760, 5363450, 10726900, 21453800]

約数ペア:

[(1, 21453800), (2, 10726900), (4, 5363450), (5, 4290760), (8, 2681725), (10, 2145380), (20, 1072690), (25, 858152), (40, 536345), (50, 429076), (100, 214538), (200, 107269)]