28754361

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2647}}^1$

素因数の和:2741

約数の個数: 24

約数和(自身を含む): 44613504

約数和(自身を除く): 15859143

約数列:

[1, 3, 9, 17, 51, 71, 153, 213, 639, 1207, 2647, 3621, 7941, 10863, 23823, 44999, 134997, 187937, 404991, 563811, 1691433, 3194929, 9584787, 28754361]

約数ペア:

[(1, 28754361), (3, 9584787), (9, 3194929), (17, 1691433), (51, 563811), (71, 404991), (153, 187937), (213, 134997), (639, 44999), (1207, 23823), (2647, 10863), (3621, 7941)]