19825616

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{39971}}^1$

素因数の和:40010

約数の個数: 20

約数和(自身を含む): 39652224

約数和(自身を除く): 19826608

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 39971, 79942, 159884, 319768, 639536, 1239101, 2478202, 4956404, 9912808, 19825616]

約数ペア:

[(1, 19825616), (2, 9912808), (4, 4956404), (8, 2478202), (16, 1239101), (31, 639536), (62, 319768), (124, 159884), (248, 79942), (496, 39971)]