21557798639

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3794719}}^1$

素因数の和:3794774

約数の個数: 16

約数和(自身を含む): 25500518400

約数和(自身を除く): 3942719761

約数列:

[1, 13, 19, 23, 247, 299, 437, 5681, 3794719, 49331347, 72099661, 87278537, 937295593, 1134620981, 1658292203, 21557798639]

約数ペア:

[(1, 21557798639), (13, 1658292203), (19, 1134620981), (23, 937295593), (247, 87278537), (299, 72099661), (437, 49331347), (5681, 3794719)]