20149972

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{607}}^1$

素因数の和:847

約数の個数: 24

約数和(自身を含む): 36329216

約数和(自身を除く): 16179244

約数列:

[1, 2, 4, 43, 86, 172, 193, 386, 607, 772, 1214, 2428, 8299, 16598, 26101, 33196, 52202, 104404, 117151, 234302, 468604, 5037493, 10074986, 20149972]

約数ペア:

[(1, 20149972), (2, 10074986), (4, 5037493), (43, 468604), (86, 234302), (172, 117151), (193, 104404), (386, 52202), (607, 33196), (772, 26101), (1214, 16598), (2428, 8299)]