28584387

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 20444733

約数列:

[1, 3, 9, 13, 27, 31, 37, 39, 71, 93, 111, 117, 213, 279, 333, 351, 403, 481, 639, 837, 923, 999, 1147, 1209, 1443, 1917, 2201, 2627, 2769, 3441, 3627, 4329, 6603, 7881, 8307, 10323, 10881, 12987, 14911, 19809, 23643, 24921, 28613, 30969, 34151, 44733, 59427, 70929, 81437, 85839, 102453, 134199, 244311, 257517, 307359, 402597, 732933, 772551, 922077, 1058681, 2198799, 3176043, 9528129, 28584387]

約数ペア:

[(1, 28584387), (3, 9528129), (9, 3176043), (13, 2198799), (27, 1058681), (31, 922077), (37, 772551), (39, 732933), (71, 402597), (93, 307359), (111, 257517), (117, 244311), (213, 134199), (279, 102453), (333, 85839), (351, 81437), (403, 70929), (481, 59427), (639, 44733), (837, 34151), (923, 30969), (999, 28613), (1147, 24921), (1209, 23643), (1443, 19809), (1917, 14911), (2201, 12987), (2627, 10881), (2769, 10323), (3441, 8307), (3627, 7881), (4329, 6603)]