18697264

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{4547}}^1$

素因数の和:4812

約数の個数: 20

約数和(自身を含む): 36374904

約数和(自身を除く): 17677640

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 4547, 9094, 18188, 36376, 72752, 1168579, 2337158, 4674316, 9348632, 18697264]

約数ペア:

[(1, 18697264), (2, 9348632), (4, 4674316), (8, 2337158), (16, 1168579), (257, 72752), (514, 36376), (1028, 18188), (2056, 9094), (4112, 4547)]