1639656963

素因数分解:

$3^2\times 7^3\times {\mathrm{137}}^1\times {\mathrm{3877}}^1$

素因数の和:4041

約数の個数: 48

約数和(自身を含む): 2782852800

約数和(自身を除く): 1143195837

約数列:

[1, 3, 7, 9, 21, 49, 63, 137, 147, 343, 411, 441, 959, 1029, 1233, 2877, 3087, 3877, 6713, 8631, 11631, 20139, 27139, 34893, 46991, 60417, 81417, 140973, 189973, 244251, 422919, 531149, 569919, 1329811, 1593447, 1709757, 3718043, 3989433, 4780341, 11154129, 11968299, 26026301, 33462387, 78078903, 182184107, 234236709, 546552321, 1639656963]

約数ペア:

[(1, 1639656963), (3, 546552321), (7, 234236709), (9, 182184107), (21, 78078903), (49, 33462387), (63, 26026301), (137, 11968299), (147, 11154129), (343, 4780341), (411, 3989433), (441, 3718043), (959, 1709757), (1029, 1593447), (1233, 1329811), (2877, 569919), (3087, 531149), (3877, 422919), (6713, 244251), (8631, 189973), (11631, 140973), (20139, 81417), (27139, 60417), (34893, 46991)]