18745956

素因数分解:

$2^2\times 3^2\times {\mathrm{520721}}^1$

素因数の和:520731

約数の個数: 18

約数和(自身を含む): 47385702

約数和(自身を除く): 28639746

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 520721, 1041442, 1562163, 2082884, 3124326, 4686489, 6248652, 9372978, 18745956]

約数ペア:

[(1, 18745956), (2, 9372978), (3, 6248652), (4, 4686489), (6, 3124326), (9, 2082884), (12, 1562163), (18, 1041442), (36, 520721)]