21539918

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{2719}}^1$

素因数の和:2971

約数の個数: 16

約数和(自身を含む): 34369920

約数和(自身を除く): 12830002

約数列:

[1, 2, 17, 34, 233, 466, 2719, 3961, 5438, 7922, 46223, 92446, 633527, 1267054, 10769959, 21539918]

約数ペア:

[(1, 21539918), (2, 10769959), (17, 1267054), (34, 633527), (233, 92446), (466, 46223), (2719, 7922), (3961, 5438)]