21389052

素因数分解:

$2^2\times 3^1\times {\mathrm{157}}^1\times {\mathrm{11353}}^1$

素因数の和:11517

約数の個数: 24

約数和(自身を含む): 50230096

約数和(自身を除く): 28841044

約数列:

[1, 2, 3, 4, 6, 12, 157, 314, 471, 628, 942, 1884, 11353, 22706, 34059, 45412, 68118, 136236, 1782421, 3564842, 5347263, 7129684, 10694526, 21389052]

約数ペア:

[(1, 21389052), (2, 10694526), (3, 7129684), (4, 5347263), (6, 3564842), (12, 1782421), (157, 136236), (314, 68118), (471, 45412), (628, 34059), (942, 22706), (1884, 11353)]