72551619

素因数分解:

$3^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:861

約数の個数: 40

約数和(自身を含む): 124678400

約数和(自身を除く): 52126781

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 199, 567, 597, 643, 1393, 1791, 1929, 4179, 4501, 5373, 5787, 12537, 13503, 16119, 17361, 37611, 40509, 52083, 112833, 121527, 127957, 364581, 383871, 895699, 1151613, 2687097, 3454839, 8061291, 10364517, 24183873, 72551619]

約数ペア:

[(1, 72551619), (3, 24183873), (7, 10364517), (9, 8061291), (21, 3454839), (27, 2687097), (63, 1151613), (81, 895699), (189, 383871), (199, 364581), (567, 127957), (597, 121527), (643, 112833), (1393, 52083), (1791, 40509), (1929, 37611), (4179, 17361), (4501, 16119), (5373, 13503), (5787, 12537)]