18807856

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27337}}^1$

素因数の和:27388

約数の個数: 20

約数和(自身を含む): 37289032

約数和(自身を除く): 18481176

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27337, 54674, 109348, 218696, 437392, 1175491, 2350982, 4701964, 9403928, 18807856]

約数ペア:

[(1, 18807856), (2, 9403928), (4, 4701964), (8, 2350982), (16, 1175491), (43, 437392), (86, 218696), (172, 109348), (344, 54674), (688, 27337)]