28947681

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1601}}^1$

素因数の和:1662

約数の個数: 36

約数和(自身を含む): 49857444

約数和(自身を除く): 20909763

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 1601, 2009, 2583, 4803, 6027, 11207, 14409, 18081, 33621, 65641, 78449, 100863, 196923, 235347, 459487, 590769, 706041, 1378461, 3216409, 4135383, 9649227, 28947681]

約数ペア:

[(1, 28947681), (3, 9649227), (7, 4135383), (9, 3216409), (21, 1378461), (41, 706041), (49, 590769), (63, 459487), (123, 235347), (147, 196923), (287, 100863), (369, 78449), (441, 65641), (861, 33621), (1601, 18081), (2009, 14409), (2583, 11207), (4803, 6027)]