20181491396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{1123}}^1\times {\mathrm{408433}}^1$

素因数の和:409571

約数の個数: 24

約数和(自身を含む): 38562704544

約数和(自身を除く): 18381213148

約数列:

[1, 2, 4, 11, 22, 44, 1123, 2246, 4492, 12353, 24706, 49412, 408433, 816866, 1633732, 4492763, 8985526, 17971052, 458670259, 917340518, 1834681036, 5045372849, 10090745698, 20181491396]

約数ペア:

[(1, 20181491396), (2, 10090745698), (4, 5045372849), (11, 1834681036), (22, 917340518), (44, 458670259), (1123, 17971052), (2246, 8985526), (4492, 4492763), (12353, 1633732), (24706, 816866), (49412, 408433)]