205657137

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{9803}}^1$

素因数の和:9859

約数の個数: 40

約数和(自身を含む): 360630336

約数和(自身を除く): 154973199

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 259, 333, 567, 777, 999, 2331, 2997, 6993, 9803, 20979, 29409, 68621, 88227, 205863, 264681, 362711, 617589, 794043, 1088133, 1852767, 2538977, 3264399, 5558301, 7616931, 9793197, 22850793, 29379591, 68552379, 205657137]

約数ペア:

[(1, 205657137), (3, 68552379), (7, 29379591), (9, 22850793), (21, 9793197), (27, 7616931), (37, 5558301), (63, 3264399), (81, 2538977), (111, 1852767), (189, 1088133), (259, 794043), (333, 617589), (567, 362711), (777, 264681), (999, 205863), (2331, 88227), (2997, 68621), (6993, 29409), (9803, 20979)]