389620881

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{829}}^1$

素因数の和:967

約数の個数: 48

約数和(自身を含む): 631862400

約数和(自身を除く): 242241519

約数列:

[1, 3, 9, 13, 27, 39, 103, 117, 169, 309, 351, 507, 829, 927, 1339, 1521, 2487, 2781, 4017, 4563, 7461, 10777, 12051, 17407, 22383, 32331, 36153, 52221, 85387, 96993, 140101, 156663, 256161, 290979, 420303, 469989, 768483, 1110031, 1260909, 2305449, 3330093, 3782727, 9990279, 14430403, 29970837, 43291209, 129873627, 389620881]

約数ペア:

[(1, 389620881), (3, 129873627), (9, 43291209), (13, 29970837), (27, 14430403), (39, 9990279), (103, 3782727), (117, 3330093), (169, 2305449), (309, 1260909), (351, 1110031), (507, 768483), (829, 469989), (927, 420303), (1339, 290979), (1521, 256161), (2487, 156663), (2781, 140101), (4017, 96993), (4563, 85387), (7461, 52221), (10777, 36153), (12051, 32331), (17407, 22383)]