21961268

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25301}}^1$

素因数の和:25343

約数の個数: 24

約数和(自身を含む): 45341184

約数和(自身を除く): 23379916

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 25301, 50602, 101204, 177107, 354214, 708428, 784331, 1568662, 3137324, 5490317, 10980634, 21961268]

約数ペア:

[(1, 21961268), (2, 10980634), (4, 5490317), (7, 3137324), (14, 1568662), (28, 784331), (31, 708428), (62, 354214), (124, 177107), (217, 101204), (434, 50602), (868, 25301)]