15656823

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2731}}^1$

素因数の和:2764

約数の個数: 36

約数和(自身を含む): 28341768

約数和(自身を除く): 12684945

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 2731, 5733, 8193, 19117, 24579, 35503, 57351, 106509, 133819, 172053, 248521, 319527, 401457, 745563, 1204371, 1739647, 2236689, 5218941, 15656823]

約数ペア:

[(1, 15656823), (3, 5218941), (7, 2236689), (9, 1739647), (13, 1204371), (21, 745563), (39, 401457), (49, 319527), (63, 248521), (91, 172053), (117, 133819), (147, 106509), (273, 57351), (441, 35503), (637, 24579), (819, 19117), (1911, 8193), (2731, 5733)]