890397981

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{449}}^1\times {\mathrm{607}}^1$

素因数の和:1087

約数の個数: 48

約数和(自身を含む): 1455552000

約数和(自身を除く): 565154019

約数列:

[1, 3, 9, 11, 27, 33, 99, 121, 297, 363, 449, 607, 1089, 1347, 1821, 3267, 4041, 4939, 5463, 6677, 12123, 14817, 16389, 20031, 44451, 54329, 60093, 73447, 133353, 162987, 180279, 220341, 272543, 488961, 661023, 817629, 1466883, 1983069, 2452887, 2997973, 7358661, 8993919, 26981757, 32977703, 80945271, 98933109, 296799327, 890397981]

約数ペア:

[(1, 890397981), (3, 296799327), (9, 98933109), (11, 80945271), (27, 32977703), (33, 26981757), (99, 8993919), (121, 7358661), (297, 2997973), (363, 2452887), (449, 1983069), (607, 1466883), (1089, 817629), (1347, 661023), (1821, 488961), (3267, 272543), (4041, 220341), (4939, 180279), (5463, 162987), (6677, 133353), (12123, 73447), (14817, 60093), (16389, 54329), (20031, 44451)]