20795715

素因数分解:

$3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{887}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 36155808

約数和(自身を除く): 15360093

約数列:

[1, 3, 5, 9, 15, 45, 521, 887, 1563, 2605, 2661, 4435, 4689, 7815, 7983, 13305, 23445, 39915, 462127, 1386381, 2310635, 4159143, 6931905, 20795715]

約数ペア:

[(1, 20795715), (3, 6931905), (5, 4159143), (9, 2310635), (15, 1386381), (45, 462127), (521, 39915), (887, 23445), (1563, 13305), (2605, 7983), (2661, 7815), (4435, 4689)]