20418266

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{607}}^1$

素因数の和:770

約数の個数: 24

約数和(自身を含む): 33962880

約数和(自身を除く): 13544614

約数列:

[1, 2, 11, 22, 121, 139, 242, 278, 607, 1214, 1529, 3058, 6677, 13354, 16819, 33638, 73447, 84373, 146894, 168746, 928103, 1856206, 10209133, 20418266]

約数ペア:

[(1, 20418266), (2, 10209133), (11, 1856206), (22, 928103), (121, 168746), (139, 146894), (242, 84373), (278, 73447), (607, 33638), (1214, 16819), (1529, 13354), (3058, 6677)]