21433977

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{3727}}^1$

素因数の和:3810

約数の個数: 20

約数和(自身を含む): 32478336

約数和(自身を除く): 11044359

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 3727, 5751, 11181, 33543, 100629, 264617, 301887, 793851, 2381553, 7144659, 21433977]

約数ペア:

[(1, 21433977), (3, 7144659), (9, 2381553), (27, 793851), (71, 301887), (81, 264617), (213, 100629), (639, 33543), (1917, 11181), (3727, 5751)]