28318328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{208223}}^1$

素因数の和:208246

約数の個数: 16

約数和(自身を含む): 56220480

約数和(自身を除く): 27902152

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 208223, 416446, 832892, 1665784, 3539791, 7079582, 14159164, 28318328]

約数ペア:

[(1, 28318328), (2, 14159164), (4, 7079582), (8, 3539791), (17, 1665784), (34, 832892), (68, 416446), (136, 208223)]