19860789

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1627}}^1$

素因数の和:1956

約数の個数: 16

約数和(自身を含む): 28626752

約数和(自身を除く): 8765963

約数列:

[1, 3, 13, 39, 313, 939, 1627, 4069, 4881, 12207, 21151, 63453, 509251, 1527753, 6620263, 19860789]

約数ペア:

[(1, 19860789), (3, 6620263), (13, 1527753), (39, 509251), (313, 63453), (939, 21151), (1627, 12207), (4069, 4881)]