21020343

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{1153}}^1$

素因数の和:1318

約数の個数: 16

約数和(自身を含む): 28803840

約数和(自身を除く): 7783497

約数列:

[1, 3, 59, 103, 177, 309, 1153, 3459, 6077, 18231, 68027, 118759, 204081, 356277, 7006781, 21020343]

約数ペア:

[(1, 21020343), (3, 7006781), (59, 356277), (103, 204081), (177, 118759), (309, 68027), (1153, 18231), (3459, 6077)]