28804653

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{1787}}^1$

素因数の和:1998

約数の個数: 20

約数和(自身を含む): 43269600

約数和(自身を除く): 14464947

約数列:

[1, 3, 9, 27, 81, 199, 597, 1787, 1791, 5361, 5373, 16083, 16119, 48249, 144747, 355613, 1066839, 3200517, 9601551, 28804653]

約数ペア:

[(1, 28804653), (3, 9601551), (9, 3200517), (27, 1066839), (81, 355613), (199, 144747), (597, 48249), (1787, 16119), (1791, 16083), (5361, 5373)]