28747911

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{881}}^1$

素因数の和:1106

約数の個数: 16

約数和(自身を含む): 39160800

約数和(自身を除く): 10412889

約数列:

[1, 3, 73, 149, 219, 447, 881, 2643, 10877, 32631, 64313, 131269, 192939, 393807, 9582637, 28747911]

約数ペア:

[(1, 28747911), (3, 9582637), (73, 393807), (149, 192939), (219, 131269), (447, 64313), (881, 32631), (2643, 10877)]