21758048

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{271}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 46541376

約数和(自身を除く): 24783328

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 193, 208, 271, 386, 416, 542, 772, 1084, 1544, 2168, 2509, 3088, 3523, 4336, 5018, 6176, 7046, 8672, 10036, 14092, 20072, 28184, 40144, 52303, 56368, 80288, 104606, 112736, 209212, 418424, 679939, 836848, 1359878, 1673696, 2719756, 5439512, 10879024, 21758048]

約数ペア:

[(1, 21758048), (2, 10879024), (4, 5439512), (8, 2719756), (13, 1673696), (16, 1359878), (26, 836848), (32, 679939), (52, 418424), (104, 209212), (193, 112736), (208, 104606), (271, 80288), (386, 56368), (416, 52303), (542, 40144), (772, 28184), (1084, 20072), (1544, 14092), (2168, 10036), (2509, 8672), (3088, 7046), (3523, 6176), (4336, 5018)]