21568167

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{11251}}^1$

素因数の和:11331

約数の個数: 16

約数和(自身を含む): 32405760

約数和(自身を除く): 10837593

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 11251, 33753, 101259, 303777, 798821, 2396463, 7189389, 21568167]

約数ペア:

[(1, 21568167), (3, 7189389), (9, 2396463), (27, 798821), (71, 303777), (213, 101259), (639, 33753), (1917, 11251)]