18416943

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 28934400

約数和(自身を除く): 10517457

約数列:

[1, 3, 9, 27, 29, 43, 87, 129, 261, 387, 547, 783, 1161, 1247, 1641, 3741, 4923, 11223, 14769, 15863, 23521, 33669, 47589, 70563, 142767, 211689, 428301, 635067, 682109, 2046327, 6138981, 18416943]

約数ペア:

[(1, 18416943), (3, 6138981), (9, 2046327), (27, 682109), (29, 635067), (43, 428301), (87, 211689), (129, 142767), (261, 70563), (387, 47589), (547, 33669), (783, 23521), (1161, 15863), (1247, 14769), (1641, 11223), (3741, 4923)]