21751808

素因数分解:

$2^{11}\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:97

約数の個数: 96

約数和(自身を含む): 50450400

約数和(自身を除く): 28698592

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 43, 52, 64, 76, 86, 104, 128, 152, 172, 208, 247, 256, 304, 344, 416, 494, 512, 559, 608, 688, 817, 832, 988, 1024, 1118, 1216, 1376, 1634, 1664, 1976, 2048, 2236, 2432, 2752, 3268, 3328, 3952, 4472, 4864, 5504, 6536, 6656, 7904, 8944, 9728, 10621, 11008, 13072, 13312, 15808, 17888, 19456, 21242, 22016, 26144, 26624, 31616, 35776, 38912, 42484, 44032, 52288, 63232, 71552, 84968, 88064, 104576, 126464, 143104, 169936, 209152, 252928, 286208, 339872, 418304, 505856, 572416, 679744, 836608, 1144832, 1359488, 1673216, 2718976, 5437952, 10875904, 21751808]

約数ペア:

[(1, 21751808), (2, 10875904), (4, 5437952), (8, 2718976), (13, 1673216), (16, 1359488), (19, 1144832), (26, 836608), (32, 679744), (38, 572416), (43, 505856), (52, 418304), (64, 339872), (76, 286208), (86, 252928), (104, 209152), (128, 169936), (152, 143104), (172, 126464), (208, 104576), (247, 88064), (256, 84968), (304, 71552), (344, 63232), (416, 52288), (494, 44032), (512, 42484), (559, 38912), (608, 35776), (688, 31616), (817, 26624), (832, 26144), (988, 22016), (1024, 21242), (1118, 19456), (1216, 17888), (1376, 15808), (1634, 13312), (1664, 13072), (1976, 11008), (2048, 10621), (2236, 9728), (2432, 8944), (2752, 7904), (3268, 6656), (3328, 6536), (3952, 5504), (4472, 4864)]