221564

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 456288

約数和(自身を除く): 234724

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 193, 287, 386, 574, 772, 1148, 1351, 2702, 5404, 7913, 15826, 31652, 55391, 110782, 221564]

約数ペア:

[(1, 221564), (2, 110782), (4, 55391), (7, 31652), (14, 15826), (28, 7913), (41, 5404), (82, 2702), (164, 1351), (193, 1148), (287, 772), (386, 574)]