21050384

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32089}}^1$

素因数の和:32138

約数の個数: 20

約数和(自身を含む): 41781180

約数和(自身を除く): 20730796

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32089, 64178, 128356, 256712, 513424, 1315649, 2631298, 5262596, 10525192, 21050384]

約数ペア:

[(1, 21050384), (2, 10525192), (4, 5262596), (8, 2631298), (16, 1315649), (41, 513424), (82, 256712), (164, 128356), (328, 64178), (656, 32089)]