20699976

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 57153600

約数和(自身を除く): 36453624

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 89, 132, 178, 264, 267, 356, 534, 712, 881, 979, 1068, 1762, 1958, 2136, 2643, 2937, 3524, 3916, 5286, 5874, 7048, 7832, 9691, 10572, 11748, 19382, 21144, 23496, 29073, 38764, 58146, 77528, 78409, 116292, 156818, 232584, 235227, 313636, 470454, 627272, 862499, 940908, 1724998, 1881816, 2587497, 3449996, 5174994, 6899992, 10349988, 20699976]

約数ペア:

[(1, 20699976), (2, 10349988), (3, 6899992), (4, 5174994), (6, 3449996), (8, 2587497), (11, 1881816), (12, 1724998), (22, 940908), (24, 862499), (33, 627272), (44, 470454), (66, 313636), (88, 235227), (89, 232584), (132, 156818), (178, 116292), (264, 78409), (267, 77528), (356, 58146), (534, 38764), (712, 29073), (881, 23496), (979, 21144), (1068, 19382), (1762, 11748), (1958, 10572), (2136, 9691), (2643, 7832), (2937, 7048), (3524, 5874), (3916, 5286)]