19889705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{4357}}^1$

素因数の和:4456

約数の個数: 16

約数和(自身を含む): 26357184

約数和(自身を除く): 6467479

約数列:

[1, 5, 11, 55, 83, 415, 913, 4357, 4565, 21785, 47927, 239635, 361631, 1808155, 3977941, 19889705]

約数ペア:

[(1, 19889705), (5, 3977941), (11, 1808155), (55, 361631), (83, 239635), (415, 47927), (913, 21785), (4357, 4565)]