21439323

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{9127}}^1$

素因数の和:9168

約数の個数: 20

約数和(自身を含む): 33134640

約数和(自身を除く): 11695317

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 9127, 27381, 82143, 246429, 264683, 739287, 794049, 2382147, 7146441, 21439323]

約数ペア:

[(1, 21439323), (3, 7146441), (9, 2382147), (27, 794049), (29, 739287), (81, 264683), (87, 246429), (261, 82143), (783, 27381), (2349, 9127)]