18105451

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 23244144

約数和(自身を除く): 5138693

約数列:

[1, 7, 13, 43, 49, 91, 301, 559, 637, 661, 2107, 3913, 4627, 8593, 27391, 28423, 32389, 60151, 198961, 369499, 421057, 1392727, 2586493, 18105451]

約数ペア:

[(1, 18105451), (7, 2586493), (13, 1392727), (43, 421057), (49, 369499), (91, 198961), (301, 60151), (559, 32389), (637, 28423), (661, 27391), (2107, 8593), (3913, 4627)]