20363553

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7517}}^1$

素因数の和:7573

約数の個数: 24

約数和(自身を含む): 34402368

約数和(自身を除く): 14038815

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7517, 22551, 52619, 67653, 157857, 323231, 473571, 969693, 2262617, 2909079, 6787851, 20363553]

約数ペア:

[(1, 20363553), (3, 6787851), (7, 2909079), (9, 2262617), (21, 969693), (43, 473571), (63, 323231), (129, 157857), (301, 67653), (387, 52619), (903, 22551), (2709, 7517)]