221405401

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{10589}}^1$

素因数の和:10728

約数の個数: 16

約数和(自身を含む): 264326400

約数和(自身を除く): 42920999

約数列:

[1, 7, 29, 103, 203, 721, 2987, 10589, 20909, 74123, 307081, 1090667, 2149567, 7634669, 31629343, 221405401]

約数ペア:

[(1, 221405401), (7, 31629343), (29, 7634669), (103, 2149567), (203, 1090667), (721, 307081), (2987, 74123), (10589, 20909)]