21321542

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{6173}}^1$

素因数の和:6343

約数の個数: 16

約数和(自身を含む): 35117712

約数和(自身を除く): 13796170

約数列:

[1, 2, 11, 22, 157, 314, 1727, 3454, 6173, 12346, 67903, 135806, 969161, 1938322, 10660771, 21321542]

約数ペア:

[(1, 21321542), (2, 10660771), (11, 1938322), (22, 969161), (157, 135806), (314, 67903), (1727, 12346), (3454, 6173)]