13731921

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 23996544

約数和(自身を除く): 10264623

約数列:

[1, 3, 7, 9, 21, 37, 43, 63, 111, 129, 137, 259, 301, 333, 387, 411, 777, 903, 959, 1233, 1591, 2331, 2709, 2877, 4773, 5069, 5891, 8631, 11137, 14319, 15207, 17673, 33411, 35483, 41237, 45621, 53019, 100233, 106449, 123711, 217967, 319347, 371133, 653901, 1525769, 1961703, 4577307, 13731921]

約数ペア:

[(1, 13731921), (3, 4577307), (7, 1961703), (9, 1525769), (21, 653901), (37, 371133), (43, 319347), (63, 217967), (111, 123711), (129, 106449), (137, 100233), (259, 53019), (301, 45621), (333, 41237), (387, 35483), (411, 33411), (777, 17673), (903, 15207), (959, 14319), (1233, 11137), (1591, 8631), (2331, 5891), (2709, 5069), (2877, 4773)]