21157774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{673}}^1\times {\mathrm{1429}}^1$

素因数の和:2115

約数の個数: 16

約数和(自身を含む): 34697520

約数和(自身を除く): 13539746

約数列:

[1, 2, 11, 22, 673, 1346, 1429, 2858, 7403, 14806, 15719, 31438, 961717, 1923434, 10578887, 21157774]

約数ペア:

[(1, 21157774), (2, 10578887), (11, 1923434), (22, 961717), (673, 31438), (1346, 15719), (1429, 14806), (2858, 7403)]