18681608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4937}}^1$

素因数の和:4997

約数の個数: 32

約数和(自身を含む): 39108960

約数和(自身を除く): 20427352

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 4937, 9874, 19748, 39496, 54307, 108614, 212291, 217228, 424582, 434456, 849164, 1698328, 2335201, 4670402, 9340804, 18681608]

約数ペア:

[(1, 18681608), (2, 9340804), (4, 4670402), (8, 2335201), (11, 1698328), (22, 849164), (43, 434456), (44, 424582), (86, 217228), (88, 212291), (172, 108614), (344, 54307), (473, 39496), (946, 19748), (1892, 9874), (3784, 4937)]