21032368

素因数分解:

$2^4\times 7^2\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:354

約数の個数: 60

約数和(自身を含む): 47991720

約数和(自身を除く): 26959352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 139, 193, 196, 278, 386, 392, 556, 772, 784, 973, 1112, 1351, 1544, 1946, 2224, 2702, 3088, 3892, 5404, 6811, 7784, 9457, 10808, 13622, 15568, 18914, 21616, 26827, 27244, 37828, 53654, 54488, 75656, 107308, 108976, 151312, 187789, 214616, 375578, 429232, 751156, 1314523, 1502312, 2629046, 3004624, 5258092, 10516184, 21032368]

約数ペア:

[(1, 21032368), (2, 10516184), (4, 5258092), (7, 3004624), (8, 2629046), (14, 1502312), (16, 1314523), (28, 751156), (49, 429232), (56, 375578), (98, 214616), (112, 187789), (139, 151312), (193, 108976), (196, 107308), (278, 75656), (386, 54488), (392, 53654), (556, 37828), (772, 27244), (784, 26827), (973, 21616), (1112, 18914), (1351, 15568), (1544, 13622), (1946, 10808), (2224, 9457), (2702, 7784), (3088, 6811), (3892, 5404)]