21655648

素因数分解:

$2^5\times 7^3\times {\mathrm{1973}}^1$

素因数の和:2004

約数の個数: 48

約数和(自身を含む): 49744800

約数和(自身を除く): 28089152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 343, 392, 686, 784, 1372, 1568, 1973, 2744, 3946, 5488, 7892, 10976, 13811, 15784, 27622, 31568, 55244, 63136, 96677, 110488, 193354, 220976, 386708, 441952, 676739, 773416, 1353478, 1546832, 2706956, 3093664, 5413912, 10827824, 21655648]

約数ペア:

[(1, 21655648), (2, 10827824), (4, 5413912), (7, 3093664), (8, 2706956), (14, 1546832), (16, 1353478), (28, 773416), (32, 676739), (49, 441952), (56, 386708), (98, 220976), (112, 193354), (196, 110488), (224, 96677), (343, 63136), (392, 55244), (686, 31568), (784, 27622), (1372, 15784), (1568, 13811), (1973, 10976), (2744, 7892), (3946, 5488)]