1640023

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1$

素因数の和:115

約数の個数: 24

約数和(自身を含む): 2194560

約数和(自身を除く): 554537

約数列:

[1, 7, 11, 19, 59, 77, 133, 209, 361, 413, 649, 1121, 1463, 2527, 3971, 4543, 7847, 12331, 21299, 27797, 86317, 149093, 234289, 1640023]

約数ペア:

[(1, 1640023), (7, 234289), (11, 149093), (19, 86317), (59, 27797), (77, 21299), (133, 12331), (209, 7847), (361, 4543), (413, 3971), (649, 2527), (1121, 1463)]