21679168

素因数分解:

$2^6\times 7^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:280

約数の個数: 84

約数和(自身を含む): 51889152

約数和(自身を除く): 30209984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 64, 98, 112, 124, 196, 217, 223, 224, 248, 392, 434, 446, 448, 496, 784, 868, 892, 992, 1519, 1561, 1568, 1736, 1784, 1984, 3038, 3122, 3136, 3472, 3568, 6076, 6244, 6913, 6944, 7136, 10927, 12152, 12488, 13826, 13888, 14272, 21854, 24304, 24976, 27652, 43708, 48391, 48608, 49952, 55304, 87416, 96782, 97216, 99904, 110608, 174832, 193564, 221216, 338737, 349664, 387128, 442432, 677474, 699328, 774256, 1354948, 1548512, 2709896, 3097024, 5419792, 10839584, 21679168]

約数ペア:

[(1, 21679168), (2, 10839584), (4, 5419792), (7, 3097024), (8, 2709896), (14, 1548512), (16, 1354948), (28, 774256), (31, 699328), (32, 677474), (49, 442432), (56, 387128), (62, 349664), (64, 338737), (98, 221216), (112, 193564), (124, 174832), (196, 110608), (217, 99904), (223, 97216), (224, 96782), (248, 87416), (392, 55304), (434, 49952), (446, 48608), (448, 48391), (496, 43708), (784, 27652), (868, 24976), (892, 24304), (992, 21854), (1519, 14272), (1561, 13888), (1568, 13826), (1736, 12488), (1784, 12152), (1984, 10927), (3038, 7136), (3122, 6944), (3136, 6913), (3472, 6244), (3568, 6076)]