28469637

素因数分解:

$3^6\times 7^2\times {\mathrm{797}}^1$

素因数の和:829

約数の個数: 42

約数和(自身を含む): 49716198

約数和(自身を除く): 21246561

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 797, 1323, 1701, 2391, 3969, 5103, 5579, 7173, 11907, 16737, 21519, 35721, 39053, 50211, 64557, 117159, 150633, 193671, 351477, 451899, 581013, 1054431, 1355697, 3163293, 4067091, 9489879, 28469637]

約数ペア:

[(1, 28469637), (3, 9489879), (7, 4067091), (9, 3163293), (21, 1355697), (27, 1054431), (49, 581013), (63, 451899), (81, 351477), (147, 193671), (189, 150633), (243, 117159), (441, 64557), (567, 50211), (729, 39053), (797, 35721), (1323, 21519), (1701, 16737), (2391, 11907), (3969, 7173), (5103, 5579)]