20338227

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1352

約数の個数: 48

約数和(自身を含む): 38088960

約数和(自身を除く): 17750733

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1307, 1729, 2223, 3921, 5187, 9149, 11763, 15561, 16991, 24833, 27447, 50973, 74499, 82341, 118937, 152919, 173831, 223497, 322829, 356811, 521493, 968487, 1070433, 1564479, 2259803, 2905461, 6779409, 20338227]

約数ペア:

[(1, 20338227), (3, 6779409), (7, 2905461), (9, 2259803), (13, 1564479), (19, 1070433), (21, 968487), (39, 521493), (57, 356811), (63, 322829), (91, 223497), (117, 173831), (133, 152919), (171, 118937), (247, 82341), (273, 74499), (399, 50973), (741, 27447), (819, 24833), (1197, 16991), (1307, 15561), (1729, 11763), (2223, 9149), (3921, 5187)]