21724288

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{3947}}^1$

素因数の和:4004

約数の個数: 32

約数和(自身を含む): 44296560

約数和(自身を除く): 22572272

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 344, 688, 1376, 2752, 3947, 5504, 7894, 15788, 31576, 63152, 126304, 169721, 252608, 339442, 505216, 678884, 1357768, 2715536, 5431072, 10862144, 21724288]

約数ペア:

[(1, 21724288), (2, 10862144), (4, 5431072), (8, 2715536), (16, 1357768), (32, 678884), (43, 505216), (64, 339442), (86, 252608), (128, 169721), (172, 126304), (344, 63152), (688, 31576), (1376, 15788), (2752, 7894), (3947, 5504)]