21244040

素因数分解:

$2^3\times 5^1\times {\mathrm{531101}}^1$

素因数の和:531112

約数の個数: 16

約数和(自身を含む): 47799180

約数和(自身を除く): 26555140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 531101, 1062202, 2124404, 2655505, 4248808, 5311010, 10622020, 21244040]

約数ペア:

[(1, 21244040), (2, 10622020), (4, 5311010), (5, 4248808), (8, 2655505), (10, 2124404), (20, 1062202), (40, 531101)]