20728344

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9491}}^1$

素因数の和:9520

約数の個数: 64

約数和(自身を含む): 63786240

約数和(自身を除く): 43057896

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 312, 364, 546, 728, 1092, 2184, 9491, 18982, 28473, 37964, 56946, 66437, 75928, 113892, 123383, 132874, 199311, 227784, 246766, 265748, 370149, 398622, 493532, 531496, 740298, 797244, 863681, 987064, 1480596, 1594488, 1727362, 2591043, 2961192, 3454724, 5182086, 6909448, 10364172, 20728344]

約数ペア:

[(1, 20728344), (2, 10364172), (3, 6909448), (4, 5182086), (6, 3454724), (7, 2961192), (8, 2591043), (12, 1727362), (13, 1594488), (14, 1480596), (21, 987064), (24, 863681), (26, 797244), (28, 740298), (39, 531496), (42, 493532), (52, 398622), (56, 370149), (78, 265748), (84, 246766), (91, 227784), (104, 199311), (156, 132874), (168, 123383), (182, 113892), (273, 75928), (312, 66437), (364, 56946), (546, 37964), (728, 28473), (1092, 18982), (2184, 9491)]