20541704

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{23557}}^1$

素因数の和:23672

約数の個数: 16

約数和(自身を含む): 38870700

約数和(自身を除く): 18328996

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 23557, 47114, 94228, 188456, 2567713, 5135426, 10270852, 20541704]

約数ペア:

[(1, 20541704), (2, 10270852), (4, 5135426), (8, 2567713), (109, 188456), (218, 94228), (436, 47114), (872, 23557)]