18040456

素因数分解:

$2^3\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1163}}^1$

素因数の和:1453

約数の個数: 32

約数和(自身を含む): 38831040

約数和(自身を除く): 20790584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 277, 554, 1108, 1163, 1939, 2216, 2326, 3878, 4652, 7756, 8141, 9304, 15512, 16282, 32564, 65128, 322151, 644302, 1288604, 2255057, 2577208, 4510114, 9020228, 18040456]

約数ペア:

[(1, 18040456), (2, 9020228), (4, 4510114), (7, 2577208), (8, 2255057), (14, 1288604), (28, 644302), (56, 322151), (277, 65128), (554, 32564), (1108, 16282), (1163, 15512), (1939, 9304), (2216, 8141), (2326, 7756), (3878, 4652)]