19938771

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{38867}}^1$

素因数の和:38895

約数の個数: 16

約数和(自身を含む): 31094400

約数和(自身を除く): 11155629

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 38867, 116601, 349803, 738473, 1049409, 2215419, 6646257, 19938771]

約数ペア:

[(1, 19938771), (3, 6646257), (9, 2215419), (19, 1049409), (27, 738473), (57, 349803), (171, 116601), (513, 38867)]