20161449

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 37140480

約数和(自身を除く): 16979031

約数列:

[1, 3, 7, 9, 11, 21, 33, 47, 63, 77, 99, 141, 231, 329, 423, 517, 619, 693, 987, 1551, 1857, 2961, 3619, 4333, 4653, 5571, 6809, 10857, 12999, 20427, 29093, 32571, 38997, 47663, 61281, 87279, 142989, 203651, 261837, 320023, 428967, 610953, 960069, 1832859, 2240161, 2880207, 6720483, 20161449]

約数ペア:

[(1, 20161449), (3, 6720483), (7, 2880207), (9, 2240161), (11, 1832859), (21, 960069), (33, 610953), (47, 428967), (63, 320023), (77, 261837), (99, 203651), (141, 142989), (231, 87279), (329, 61281), (423, 47663), (517, 38997), (619, 32571), (693, 29093), (987, 20427), (1551, 12999), (1857, 10857), (2961, 6809), (3619, 5571), (4333, 4653)]