21167703

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:564

約数の個数: 32

約数和(自身を含む): 33592320

約数和(自身を除く): 12424617

約数列:

[1, 3, 9, 17, 27, 51, 107, 153, 321, 431, 459, 963, 1293, 1819, 2889, 3879, 5457, 7327, 11637, 16371, 21981, 46117, 49113, 65943, 138351, 197829, 415053, 783989, 1245159, 2351967, 7055901, 21167703]

約数ペア:

[(1, 21167703), (3, 7055901), (9, 2351967), (17, 1245159), (27, 783989), (51, 415053), (107, 197829), (153, 138351), (321, 65943), (431, 49113), (459, 46117), (963, 21981), (1293, 16371), (1819, 11637), (2889, 7327), (3879, 5457)]