17920287

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1$

素因数の和:1404

約数の個数: 48

約数和(自身を含む): 33995520

約数和(自身を除く): 16075233

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1361, 1463, 1881, 4083, 4389, 9527, 12249, 13167, 14971, 25859, 28581, 44913, 77577, 85743, 104797, 134739, 181013, 232731, 284449, 314391, 543039, 853347, 943173, 1629117, 1991143, 2560041, 5973429, 17920287]

約数ペア:

[(1, 17920287), (3, 5973429), (7, 2560041), (9, 1991143), (11, 1629117), (19, 943173), (21, 853347), (33, 543039), (57, 314391), (63, 284449), (77, 232731), (99, 181013), (133, 134739), (171, 104797), (209, 85743), (231, 77577), (399, 44913), (627, 28581), (693, 25859), (1197, 14971), (1361, 13167), (1463, 12249), (1881, 9527), (4083, 4389)]