21198903

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{10531}}^1$

素因数の和:10606

約数の個数: 16

約数和(自身を含む): 31343232

約数和(自身を除く): 10144329

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 10531, 31593, 115841, 347523, 642391, 1927173, 7066301, 21198903]

約数ペア:

[(1, 21198903), (3, 7066301), (11, 1927173), (33, 642391), (61, 347523), (183, 115841), (671, 31593), (2013, 10531)]