28891918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{21529}}^1$

素因数の和:21603

約数の個数: 16

約数和(自身を含む): 48054960

約数和(自身を除く): 19163042

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 21529, 43058, 236819, 473638, 1313269, 2626538, 14445959, 28891918]

約数ペア:

[(1, 28891918), (2, 14445959), (11, 2626538), (22, 1313269), (61, 473638), (122, 236819), (671, 43058), (1342, 21529)]