2655261

素因数分解:

$3^5\times 7^2\times {\mathrm{223}}^1$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 4647552

約数和(自身を除く): 1992291

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 223, 243, 441, 567, 669, 1323, 1561, 1701, 2007, 3969, 4683, 6021, 10927, 11907, 14049, 18063, 32781, 42147, 54189, 98343, 126441, 295029, 379323, 885087, 2655261]

約数ペア:

[(1, 2655261), (3, 885087), (7, 379323), (9, 295029), (21, 126441), (27, 98343), (49, 54189), (63, 42147), (81, 32781), (147, 18063), (189, 14049), (223, 11907), (243, 10927), (441, 6021), (567, 4683), (669, 3969), (1323, 2007), (1561, 1701)]