21242344

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61751}}^1$

素因数の和:61800

約数の個数: 16

約数和(自身を含む): 40756320

約数和(自身を除く): 19513976

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61751, 123502, 247004, 494008, 2655293, 5310586, 10621172, 21242344]

約数ペア:

[(1, 21242344), (2, 10621172), (4, 5310586), (8, 2655293), (43, 494008), (86, 247004), (172, 123502), (344, 61751)]