20915904

素因数分解:

$2^6\times 3^1\times {\mathrm{41}}^1\times {\mathrm{2657}}^1$

素因数の和:2713

約数の個数: 56

約数和(自身を含む): 56711088

約数和(自身を除く): 35795184

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 164, 192, 246, 328, 492, 656, 984, 1312, 1968, 2624, 2657, 3936, 5314, 7872, 7971, 10628, 15942, 21256, 31884, 42512, 63768, 85024, 108937, 127536, 170048, 217874, 255072, 326811, 435748, 510144, 653622, 871496, 1307244, 1742992, 2614488, 3485984, 5228976, 6971968, 10457952, 20915904]

約数ペア:

[(1, 20915904), (2, 10457952), (3, 6971968), (4, 5228976), (6, 3485984), (8, 2614488), (12, 1742992), (16, 1307244), (24, 871496), (32, 653622), (41, 510144), (48, 435748), (64, 326811), (82, 255072), (96, 217874), (123, 170048), (164, 127536), (192, 108937), (246, 85024), (328, 63768), (492, 42512), (656, 31884), (984, 21256), (1312, 15942), (1968, 10628), (2624, 7971), (2657, 7872), (3936, 5314)]