16578513

素因数分解:

$3^4\times 7^2\times {\mathrm{4177}}^1$

素因数の和:4203

約数の個数: 30

約数和(自身を含む): 28815666

約数和(自身を除く): 12237153

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4177, 12531, 29239, 37593, 87717, 112779, 204673, 263151, 338337, 614019, 789453, 1842057, 2368359, 5526171, 16578513]

約数ペア:

[(1, 16578513), (3, 5526171), (7, 2368359), (9, 1842057), (21, 789453), (27, 614019), (49, 338337), (63, 263151), (81, 204673), (147, 112779), (189, 87717), (441, 37593), (567, 29239), (1323, 12531), (3969, 4177)]