28315287

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 56019600

約数和(自身を除く): 27704313

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 49, 63, 77, 91, 99, 117, 143, 147, 231, 273, 429, 441, 449, 539, 637, 693, 819, 1001, 1287, 1347, 1617, 1911, 3003, 3143, 4041, 4851, 4939, 5733, 5837, 7007, 9009, 9429, 14817, 17511, 21021, 22001, 28287, 34573, 40859, 44451, 52533, 63063, 64207, 66003, 103719, 122577, 192621, 198009, 242011, 286013, 311157, 367731, 449449, 577863, 726033, 858039, 1348347, 2178099, 2574117, 3146143, 4045041, 9438429, 28315287]

約数ペア:

[(1, 28315287), (3, 9438429), (7, 4045041), (9, 3146143), (11, 2574117), (13, 2178099), (21, 1348347), (33, 858039), (39, 726033), (49, 577863), (63, 449449), (77, 367731), (91, 311157), (99, 286013), (117, 242011), (143, 198009), (147, 192621), (231, 122577), (273, 103719), (429, 66003), (441, 64207), (449, 63063), (539, 52533), (637, 44451), (693, 40859), (819, 34573), (1001, 28287), (1287, 22001), (1347, 21021), (1617, 17511), (1911, 14817), (3003, 9429), (3143, 9009), (4041, 7007), (4851, 5837), (4939, 5733)]