28805007

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6563}}^1$

素因数の和:6603

約数の個数: 32

約数和(自身を含む): 50411520

約数和(自身を除く): 21606513

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 6563, 19689, 45941, 72193, 124697, 137823, 216579, 374091, 505351, 872879, 1371667, 1516053, 2618637, 4115001, 9601669, 28805007]

約数ペア:

[(1, 28805007), (3, 9601669), (7, 4115001), (11, 2618637), (19, 1516053), (21, 1371667), (33, 872879), (57, 505351), (77, 374091), (133, 216579), (209, 137823), (231, 124697), (399, 72193), (627, 45941), (1463, 19689), (4389, 6563)]