18817953

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81463}}^1$

素因数の和:81484

約数の個数: 16

約数和(自身を含む): 31282176

約数和(自身を除く): 12464223

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81463, 244389, 570241, 896093, 1710723, 2688279, 6272651, 18817953]

約数ペア:

[(1, 18817953), (3, 6272651), (7, 2688279), (11, 1710723), (21, 896093), (33, 570241), (77, 244389), (231, 81463)]