16511121

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 56

約数和(自身を含む): 28330560

約数和(自身を除く): 11819439

約数列:

[1, 3, 9, 11, 27, 29, 33, 71, 81, 87, 99, 213, 243, 261, 297, 319, 639, 729, 781, 783, 891, 957, 1917, 2059, 2343, 2349, 2673, 2871, 5751, 6177, 7029, 7047, 8019, 8613, 17253, 18531, 21087, 21141, 22649, 25839, 51759, 55593, 63261, 67947, 77517, 166779, 189783, 203841, 232551, 500337, 569349, 611523, 1501011, 1834569, 5503707, 16511121]

約数ペア:

[(1, 16511121), (3, 5503707), (9, 1834569), (11, 1501011), (27, 611523), (29, 569349), (33, 500337), (71, 232551), (81, 203841), (87, 189783), (99, 166779), (213, 77517), (243, 67947), (261, 63261), (297, 55593), (319, 51759), (639, 25839), (729, 22649), (781, 21141), (783, 21087), (891, 18531), (957, 17253), (1917, 8613), (2059, 8019), (2343, 7047), (2349, 7029), (2673, 6177), (2871, 5751)]