20411217

素因数分解:

$3^3\times {\mathrm{521}}^1\times {\mathrm{1451}}^1$

素因数の和:1981

約数の個数: 16

約数和(自身を含む): 30317760

約数和(自身を除く): 9906543

約数列:

[1, 3, 9, 27, 521, 1451, 1563, 4353, 4689, 13059, 14067, 39177, 755971, 2267913, 6803739, 20411217]

約数ペア:

[(1, 20411217), (3, 6803739), (9, 2267913), (27, 755971), (521, 39177), (1451, 14067), (1563, 13059), (4353, 4689)]