21000111

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{33493}}^1$

素因数の和:33526

約数の個数: 16

約数和(自身を含む): 32154240

約数和(自身を除く): 11154129

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 33493, 100479, 368423, 636367, 1105269, 1909101, 7000037, 21000111]

約数ペア:

[(1, 21000111), (3, 7000037), (11, 1909101), (19, 1105269), (33, 636367), (57, 368423), (209, 100479), (627, 33493)]