21763786

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:810

約数の個数: 24

約数和(自身を含む): 36197280

約数和(自身を除く): 14433494

約数列:

[1, 2, 11, 22, 121, 139, 242, 278, 647, 1294, 1529, 3058, 7117, 14234, 16819, 33638, 78287, 89933, 156574, 179866, 989263, 1978526, 10881893, 21763786]

約数ペア:

[(1, 21763786), (2, 10881893), (11, 1978526), (22, 989263), (121, 179866), (139, 156574), (242, 89933), (278, 78287), (647, 33638), (1294, 16819), (1529, 14234), (3058, 7117)]