27870777

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:499

約数の個数: 48

約数和(自身を含む): 47880000

約数和(自身を除く): 20009223

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 121, 171, 209, 297, 363, 449, 513, 627, 1089, 1347, 1881, 2299, 3267, 4041, 4939, 5643, 6897, 8531, 12123, 14817, 20691, 25593, 44451, 54329, 62073, 76779, 93841, 133353, 162987, 230337, 281523, 488961, 844569, 1032251, 1466883, 2533707, 3096753, 9290259, 27870777]

約数ペア:

[(1, 27870777), (3, 9290259), (9, 3096753), (11, 2533707), (19, 1466883), (27, 1032251), (33, 844569), (57, 488961), (99, 281523), (121, 230337), (171, 162987), (209, 133353), (297, 93841), (363, 76779), (449, 62073), (513, 54329), (627, 44451), (1089, 25593), (1347, 20691), (1881, 14817), (2299, 12123), (3267, 8531), (4041, 6897), (4939, 5643)]