19816936

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{79907}}^1$

素因数の和:79944

約数の個数: 16

約数和(自身を含む): 38355840

約数和(自身を除く): 18538904

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 79907, 159814, 319628, 639256, 2477117, 4954234, 9908468, 19816936]

約数ペア:

[(1, 19816936), (2, 9908468), (4, 4954234), (8, 2477117), (31, 639256), (62, 319628), (124, 159814), (248, 79907)]