21780453609

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1123}}^1\times {\mathrm{1607}}^1$

素因数の和:2891

約数の個数: 40

約数和(自身を含む): 32804164800

約数和(自身を除く): 11023711191

約数列:

[1, 3, 9, 27, 81, 149, 447, 1123, 1341, 1607, 3369, 4023, 4821, 10107, 12069, 14463, 30321, 43389, 90963, 130167, 167327, 239443, 501981, 718329, 1505943, 1804661, 2154987, 4517829, 5413983, 6464961, 13553487, 16241949, 19394883, 48725847, 146177541, 268894489, 806683467, 2420050401, 7260151203, 21780453609]

約数ペア:

[(1, 21780453609), (3, 7260151203), (9, 2420050401), (27, 806683467), (81, 268894489), (149, 146177541), (447, 48725847), (1123, 19394883), (1341, 16241949), (1607, 13553487), (3369, 6464961), (4023, 5413983), (4821, 4517829), (10107, 2154987), (12069, 1804661), (14463, 1505943), (30321, 718329), (43389, 501981), (90963, 239443), (130167, 167327)]