21851224

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63521}}^1$

素因数の和:63570

約数の個数: 16

約数和(自身を含む): 41924520

約数和(自身を除く): 20073296

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63521, 127042, 254084, 508168, 2731403, 5462806, 10925612, 21851224]

約数ペア:

[(1, 21851224), (2, 10925612), (4, 5462806), (8, 2731403), (43, 508168), (86, 254084), (172, 127042), (344, 63521)]