28281231

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{31741}}^1$

素因数の和:31764

約数の個数: 20

約数和(自身を含む): 46089384

約数和(自身を除く): 17808153

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 31741, 95223, 285669, 349151, 857007, 1047453, 2571021, 3142359, 9427077, 28281231]

約数ペア:

[(1, 28281231), (3, 9427077), (9, 3142359), (11, 2571021), (27, 1047453), (33, 857007), (81, 349151), (99, 285669), (297, 95223), (891, 31741)]