21085839

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4567}}^1$

素因数の和:4601

約数の個数: 24

約数和(自身を含む): 33255040

約数和(自身を除く): 12169201

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4567, 4617, 13701, 41103, 86773, 123309, 260319, 369927, 780957, 1109781, 2342871, 7028613, 21085839]

約数ペア:

[(1, 21085839), (3, 7028613), (9, 2342871), (19, 1109781), (27, 780957), (57, 369927), (81, 260319), (171, 123309), (243, 86773), (513, 41103), (1539, 13701), (4567, 4617)]