21927105

素因数分解:

$3^5\times 5^1\times {\mathrm{18047}}^1$

素因数の和:18067

約数の個数: 24

約数和(自身を含む): 39416832

約数和(自身を除く): 17489727

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 18047, 54141, 90235, 162423, 270705, 487269, 812115, 1461807, 2436345, 4385421, 7309035, 21927105]

約数ペア:

[(1, 21927105), (3, 7309035), (5, 4385421), (9, 2436345), (15, 1461807), (27, 812115), (45, 487269), (81, 270705), (135, 162423), (243, 90235), (405, 54141), (1215, 18047)]