18478376

素因数分解:

$2^3\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1061}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 39761280

約数和(自身を除く): 21282904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 311, 622, 1061, 1244, 2122, 2177, 2488, 4244, 4354, 7427, 8488, 8708, 14854, 17416, 29708, 59416, 329971, 659942, 1319884, 2309797, 2639768, 4619594, 9239188, 18478376]

約数ペア:

[(1, 18478376), (2, 9239188), (4, 4619594), (7, 2639768), (8, 2309797), (14, 1319884), (28, 659942), (56, 329971), (311, 59416), (622, 29708), (1061, 17416), (1244, 14854), (2122, 8708), (2177, 8488), (2488, 7427), (4244, 4354)]