18638608

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27091}}^1$

素因数の和:27142

約数の個数: 20

約数和(自身を含む): 36953488

約数和(自身を除く): 18314880

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27091, 54182, 108364, 216728, 433456, 1164913, 2329826, 4659652, 9319304, 18638608]

約数ペア:

[(1, 18638608), (2, 9319304), (4, 4659652), (8, 2329826), (16, 1164913), (43, 433456), (86, 216728), (172, 108364), (344, 54182), (688, 27091)]