21201961

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{887}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 24167808

約数和(自身を除く): 2965847

約数列:

[1, 11, 41, 53, 451, 583, 887, 2173, 9757, 23903, 36367, 47011, 400037, 517121, 1927451, 21201961]

約数ペア:

[(1, 21201961), (11, 1927451), (41, 517121), (53, 400037), (451, 47011), (583, 36367), (887, 23903), (2173, 9757)]