19998231

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{877}}^1$

素因数の和:1582

約数の個数: 16

約数和(自身を含む): 29163648

約数和(自身を除く): 9165417

約数列:

[1, 3, 11, 33, 691, 877, 2073, 2631, 7601, 9647, 22803, 28941, 606007, 1818021, 6666077, 19998231]

約数ペア:

[(1, 19998231), (3, 6666077), (11, 1818021), (33, 606007), (691, 28941), (877, 22803), (2073, 9647), (2631, 7601)]