20810559

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90089}}^1$

素因数の和:90110

約数の個数: 16

約数和(自身を含む): 34594560

約数和(自身を除く): 13784001

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90089, 270267, 630623, 990979, 1891869, 2972937, 6936853, 20810559]

約数ペア:

[(1, 20810559), (3, 6936853), (7, 2972937), (11, 1891869), (21, 990979), (33, 630623), (77, 270267), (231, 90089)]