18987568

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{22391}}^1$

素因数の和:22452

約数の個数: 20

約数和(自身を含む): 37484208

約数和(自身を除く): 18496640

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 22391, 44782, 89564, 179128, 358256, 1186723, 2373446, 4746892, 9493784, 18987568]

約数ペア:

[(1, 18987568), (2, 9493784), (4, 4746892), (8, 2373446), (16, 1186723), (53, 358256), (106, 179128), (212, 89564), (424, 44782), (848, 22391)]