19516328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 22819672

約数列:

[1, 2, 4, 8, 13, 23, 26, 41, 46, 52, 82, 92, 104, 164, 184, 199, 299, 328, 398, 533, 598, 796, 943, 1066, 1196, 1592, 1886, 2132, 2392, 2587, 3772, 4264, 4577, 5174, 7544, 8159, 9154, 10348, 12259, 16318, 18308, 20696, 24518, 32636, 36616, 49036, 59501, 65272, 98072, 106067, 119002, 187657, 212134, 238004, 375314, 424268, 476008, 750628, 848536, 1501256, 2439541, 4879082, 9758164, 19516328]

約数ペア:

[(1, 19516328), (2, 9758164), (4, 4879082), (8, 2439541), (13, 1501256), (23, 848536), (26, 750628), (41, 476008), (46, 424268), (52, 375314), (82, 238004), (92, 212134), (104, 187657), (164, 119002), (184, 106067), (199, 98072), (299, 65272), (328, 59501), (398, 49036), (533, 36616), (598, 32636), (796, 24518), (943, 20696), (1066, 18308), (1196, 16318), (1592, 12259), (1886, 10348), (2132, 9154), (2392, 8159), (2587, 7544), (3772, 5174), (4264, 4577)]