20378216

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{59239}}^1$

素因数の和:59288

約数の個数: 16

約数和(自身を含む): 39098400

約数和(自身を除く): 18720184

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 59239, 118478, 236956, 473912, 2547277, 5094554, 10189108, 20378216]

約数ペア:

[(1, 20378216), (2, 10189108), (4, 5094554), (8, 2547277), (43, 473912), (86, 236956), (172, 118478), (344, 59239)]