20811813

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{577}}^1\times {\mathrm{1093}}^1$

素因数の和:1684

約数の個数: 16

約数和(自身を含む): 30351936

約数和(自身を除く): 9540123

約数列:

[1, 3, 11, 33, 577, 1093, 1731, 3279, 6347, 12023, 19041, 36069, 630661, 1891983, 6937271, 20811813]

約数ペア:

[(1, 20811813), (3, 6937271), (11, 1891983), (33, 630661), (577, 36069), (1093, 19041), (1731, 12023), (3279, 6347)]