20906928

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{2963}}^1$

素因数の和:2991

約数の個数: 90

約数和(自身を含む): 68086044

約数和(自身を除く): 47179116

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 49, 56, 63, 72, 84, 98, 112, 126, 144, 147, 168, 196, 252, 294, 336, 392, 441, 504, 588, 784, 882, 1008, 1176, 1764, 2352, 2963, 3528, 5926, 7056, 8889, 11852, 17778, 20741, 23704, 26667, 35556, 41482, 47408, 53334, 62223, 71112, 82964, 106668, 124446, 142224, 145187, 165928, 186669, 213336, 248892, 290374, 331856, 373338, 426672, 435561, 497784, 580748, 746676, 871122, 995568, 1161496, 1306683, 1493352, 1742244, 2322992, 2613366, 2986704, 3484488, 5226732, 6968976, 10453464, 20906928]

約数ペア:

[(1, 20906928), (2, 10453464), (3, 6968976), (4, 5226732), (6, 3484488), (7, 2986704), (8, 2613366), (9, 2322992), (12, 1742244), (14, 1493352), (16, 1306683), (18, 1161496), (21, 995568), (24, 871122), (28, 746676), (36, 580748), (42, 497784), (48, 435561), (49, 426672), (56, 373338), (63, 331856), (72, 290374), (84, 248892), (98, 213336), (112, 186669), (126, 165928), (144, 145187), (147, 142224), (168, 124446), (196, 106668), (252, 82964), (294, 71112), (336, 62223), (392, 53334), (441, 47408), (504, 41482), (588, 35556), (784, 26667), (882, 23704), (1008, 20741), (1176, 17778), (1764, 11852), (2352, 8889), (2963, 7056), (3528, 5926)]