21321729

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16567}}^1$

素因数の和:16597

約数の個数: 24

約数和(自身を含む): 36184512

約数和(自身を除く): 14862783

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 16567, 49701, 149103, 182237, 215371, 546711, 646113, 1640133, 1938339, 2369081, 7107243, 21321729]

約数ペア:

[(1, 21321729), (3, 7107243), (9, 2369081), (11, 1938339), (13, 1640133), (33, 646113), (39, 546711), (99, 215371), (117, 182237), (143, 149103), (429, 49701), (1287, 16567)]