645389739

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{1753}}^1\times {\mathrm{2153}}^1$

素因数の和:3931

約数の個数: 24

約数和(自身を含む): 982310160

約数和(自身を除く): 336920421

約数列:

[1, 3, 9, 19, 57, 171, 1753, 2153, 5259, 6459, 15777, 19377, 33307, 40907, 99921, 122721, 299763, 368163, 3774209, 11322627, 33967881, 71709971, 215129913, 645389739]

約数ペア:

[(1, 645389739), (3, 215129913), (9, 71709971), (19, 33967881), (57, 11322627), (171, 3774209), (1753, 368163), (2153, 299763), (5259, 122721), (6459, 99921), (15777, 40907), (19377, 33307)]