20518677

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{4967}}^1$

素因数の和:4999

約数の個数: 24

約数和(自身を含む): 32550336

約数和(自身を除く): 12031659

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 4967, 14901, 44703, 84439, 134109, 253317, 402327, 759951, 1206981, 2279853, 6839559, 20518677]

約数ペア:

[(1, 20518677), (3, 6839559), (9, 2279853), (17, 1206981), (27, 759951), (51, 402327), (81, 253317), (153, 134109), (243, 84439), (459, 44703), (1377, 14901), (4131, 4967)]