18232721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 21868224

約数和(自身を除く): 3635503

約数列:

[1, 13, 17, 23, 211, 221, 289, 299, 391, 2743, 3587, 3757, 4853, 5083, 6647, 46631, 60979, 63089, 82501, 86411, 792727, 1072513, 1402517, 18232721]

約数ペア:

[(1, 18232721), (13, 1402517), (17, 1072513), (23, 792727), (211, 86411), (221, 82501), (289, 63089), (299, 60979), (391, 46631), (2743, 6647), (3587, 5083), (3757, 4853)]