28148931

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{6997}}^1$

素因数の和:7155

約数の個数: 16

約数和(自身を含む): 41988000

約数和(自身を除く): 13839069

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 6997, 20991, 62973, 188919, 1042553, 3127659, 9382977, 28148931]

約数ペア:

[(1, 28148931), (3, 9382977), (9, 3127659), (27, 1042553), (149, 188919), (447, 62973), (1341, 20991), (4023, 6997)]