12811897

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 16809984

約数和(自身を除く): 3998087

約数列:

[1, 7, 17, 23, 31, 119, 151, 161, 217, 391, 527, 713, 1057, 2567, 2737, 3473, 3689, 4681, 4991, 12121, 17969, 24311, 32767, 59041, 79577, 84847, 107663, 413287, 557039, 753641, 1830271, 12811897]

約数ペア:

[(1, 12811897), (7, 1830271), (17, 753641), (23, 557039), (31, 413287), (119, 107663), (151, 84847), (161, 79577), (217, 59041), (391, 32767), (527, 24311), (713, 17969), (1057, 12121), (2567, 4991), (2737, 4681), (3473, 3689)]