21449857

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2459}}^1$

素因数の和:2544

約数の個数: 16

約数和(自身を含む): 25623360

約数和(自身を除く): 4173503

約数列:

[1, 11, 13, 61, 143, 671, 793, 2459, 8723, 27049, 31967, 149999, 351637, 1649989, 1949987, 21449857]

約数ペア:

[(1, 21449857), (11, 1949987), (13, 1649989), (61, 351637), (143, 149999), (671, 31967), (793, 27049), (2459, 8723)]