20691608

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19447}}^1$

素因数の和:19479

約数の個数: 32

約数和(自身を含む): 46675200

約数和(自身を除く): 25983592

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19447, 38894, 77788, 136129, 155576, 272258, 369493, 544516, 738986, 1089032, 1477972, 2586451, 2955944, 5172902, 10345804, 20691608]

約数ペア:

[(1, 20691608), (2, 10345804), (4, 5172902), (7, 2955944), (8, 2586451), (14, 1477972), (19, 1089032), (28, 738986), (38, 544516), (56, 369493), (76, 272258), (133, 155576), (152, 136129), (266, 77788), (532, 38894), (1064, 19447)]