28713909

素因数分解:

$3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{6871}}^1$

素因数の和:7080

約数の個数: 16

約数和(自身を含む): 43980800

約数和(自身を除く): 15266891

約数列:

[1, 3, 7, 21, 199, 597, 1393, 4179, 6871, 20613, 48097, 144291, 1367329, 4101987, 9571303, 28713909]

約数ペア:

[(1, 28713909), (3, 9571303), (7, 4101987), (21, 1367329), (199, 144291), (597, 48097), (1393, 20613), (4179, 6871)]