18563984

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4129}}^1$

素因数の和:4418

約数の個数: 20

約数和(自身を含む): 36104460

約数和(自身を除く): 17540476

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4129, 4496, 8258, 16516, 33032, 66064, 1160249, 2320498, 4640996, 9281992, 18563984]

約数ペア:

[(1, 18563984), (2, 9281992), (4, 4640996), (8, 2320498), (16, 1160249), (281, 66064), (562, 33032), (1124, 16516), (2248, 8258), (4129, 4496)]