20816976

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 57746304

約数和(自身を除く): 36929328

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 97, 102, 136, 194, 204, 263, 272, 291, 388, 408, 526, 582, 776, 789, 816, 1052, 1164, 1552, 1578, 1649, 2104, 2328, 3156, 3298, 4208, 4471, 4656, 4947, 6312, 6596, 8942, 9894, 12624, 13192, 13413, 17884, 19788, 25511, 26384, 26826, 35768, 39576, 51022, 53652, 71536, 76533, 79152, 102044, 107304, 153066, 204088, 214608, 306132, 408176, 433687, 612264, 867374, 1224528, 1301061, 1734748, 2602122, 3469496, 5204244, 6938992, 10408488, 20816976]

約数ペア:

[(1, 20816976), (2, 10408488), (3, 6938992), (4, 5204244), (6, 3469496), (8, 2602122), (12, 1734748), (16, 1301061), (17, 1224528), (24, 867374), (34, 612264), (48, 433687), (51, 408176), (68, 306132), (97, 214608), (102, 204088), (136, 153066), (194, 107304), (204, 102044), (263, 79152), (272, 76533), (291, 71536), (388, 53652), (408, 51022), (526, 39576), (582, 35768), (776, 26826), (789, 26384), (816, 25511), (1052, 19788), (1164, 17884), (1552, 13413), (1578, 13192), (1649, 12624), (2104, 9894), (2328, 8942), (3156, 6596), (3298, 6312), (4208, 4947), (4471, 4656)]