21018592

素因数分解:

$2^5\times 7^1\times {\mathrm{103}}^1\times {\mathrm{911}}^1$

素因数の和:1031

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 26784800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 103, 112, 206, 224, 412, 721, 824, 911, 1442, 1648, 1822, 2884, 3296, 3644, 5768, 6377, 7288, 11536, 12754, 14576, 23072, 25508, 29152, 51016, 93833, 102032, 187666, 204064, 375332, 656831, 750664, 1313662, 1501328, 2627324, 3002656, 5254648, 10509296, 21018592]

約数ペア:

[(1, 21018592), (2, 10509296), (4, 5254648), (7, 3002656), (8, 2627324), (14, 1501328), (16, 1313662), (28, 750664), (32, 656831), (56, 375332), (103, 204064), (112, 187666), (206, 102032), (224, 93833), (412, 51016), (721, 29152), (824, 25508), (911, 23072), (1442, 14576), (1648, 12754), (1822, 11536), (2884, 7288), (3296, 6377), (3644, 5768)]