861554799

素因数分解:

$3^6\times 7^2\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:392

約数の個数: 84

約数和(自身を含む): 1525128480

約数和(自身を除く): 663573681

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 89, 147, 189, 243, 267, 271, 441, 567, 623, 729, 801, 813, 1323, 1701, 1869, 1897, 2403, 2439, 3969, 4361, 5103, 5607, 5691, 7209, 7317, 11907, 13083, 13279, 16821, 17073, 21627, 21951, 24119, 35721, 39249, 39837, 50463, 51219, 64881, 65853, 72357, 117747, 119511, 151389, 153657, 168833, 197559, 217071, 353241, 358533, 454167, 460971, 506499, 651213, 1059723, 1075599, 1181831, 1382913, 1519497, 1953639, 3179169, 3226797, 3545493, 4558491, 5860917, 9680391, 10636479, 13675473, 17582751, 31909437, 41026419, 95728311, 123079257, 287184933, 861554799]

約数ペア:

[(1, 861554799), (3, 287184933), (7, 123079257), (9, 95728311), (21, 41026419), (27, 31909437), (49, 17582751), (63, 13675473), (81, 10636479), (89, 9680391), (147, 5860917), (189, 4558491), (243, 3545493), (267, 3226797), (271, 3179169), (441, 1953639), (567, 1519497), (623, 1382913), (729, 1181831), (801, 1075599), (813, 1059723), (1323, 651213), (1701, 506499), (1869, 460971), (1897, 454167), (2403, 358533), (2439, 353241), (3969, 217071), (4361, 197559), (5103, 168833), (5607, 153657), (5691, 151389), (7209, 119511), (7317, 117747), (11907, 72357), (13083, 65853), (13279, 64881), (16821, 51219), (17073, 50463), (21627, 39837), (21951, 39249), (24119, 35721)]