21879936

素因数分解:

$2^7\times 3^3\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:523

約数の個数: 128

約数和(自身を含む): 69686400

約数和(自身を除く): 47806464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 64, 72, 78, 96, 104, 108, 117, 128, 144, 156, 192, 208, 216, 234, 288, 312, 351, 384, 416, 432, 468, 487, 576, 624, 702, 832, 864, 936, 974, 1152, 1248, 1404, 1461, 1664, 1728, 1872, 1948, 2496, 2808, 2922, 3456, 3744, 3896, 4383, 4992, 5616, 5844, 6331, 7488, 7792, 8766, 11232, 11688, 12662, 13149, 14976, 15584, 17532, 18993, 22464, 23376, 25324, 26298, 31168, 35064, 37986, 44928, 46752, 50648, 52596, 56979, 62336, 70128, 75972, 93504, 101296, 105192, 113958, 140256, 151944, 170937, 187008, 202592, 210384, 227916, 280512, 303888, 341874, 405184, 420768, 455832, 561024, 607776, 683748, 810368, 841536, 911664, 1215552, 1367496, 1683072, 1823328, 2431104, 2734992, 3646656, 5469984, 7293312, 10939968, 21879936]

約数ペア:

[(1, 21879936), (2, 10939968), (3, 7293312), (4, 5469984), (6, 3646656), (8, 2734992), (9, 2431104), (12, 1823328), (13, 1683072), (16, 1367496), (18, 1215552), (24, 911664), (26, 841536), (27, 810368), (32, 683748), (36, 607776), (39, 561024), (48, 455832), (52, 420768), (54, 405184), (64, 341874), (72, 303888), (78, 280512), (96, 227916), (104, 210384), (108, 202592), (117, 187008), (128, 170937), (144, 151944), (156, 140256), (192, 113958), (208, 105192), (216, 101296), (234, 93504), (288, 75972), (312, 70128), (351, 62336), (384, 56979), (416, 52596), (432, 50648), (468, 46752), (487, 44928), (576, 37986), (624, 35064), (702, 31168), (832, 26298), (864, 25324), (936, 23376), (974, 22464), (1152, 18993), (1248, 17532), (1404, 15584), (1461, 14976), (1664, 13149), (1728, 12662), (1872, 11688), (1948, 11232), (2496, 8766), (2808, 7792), (2922, 7488), (3456, 6331), (3744, 5844), (3896, 5616), (4383, 4992)]