21806279

素因数分解:

${\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 2579257

約数列:

[1, 11, 97, 107, 191, 1067, 1177, 2101, 10379, 18527, 20437, 114169, 203797, 224807, 1982389, 21806279]

約数ペア:

[(1, 21806279), (11, 1982389), (97, 224807), (107, 203797), (191, 114169), (1067, 20437), (1177, 18527), (2101, 10379)]