21502935

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1069}}^1$

素因数の和:1232

約数の個数: 32

約数和(自身を含む): 38520000

約数和(自身を除く): 17017065

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 1069, 1341, 2235, 3207, 4023, 5345, 6705, 9621, 16035, 20115, 28863, 48105, 144315, 159281, 477843, 796405, 1433529, 2389215, 4300587, 7167645, 21502935]

約数ペア:

[(1, 21502935), (3, 7167645), (5, 4300587), (9, 2389215), (15, 1433529), (27, 796405), (45, 477843), (135, 159281), (149, 144315), (447, 48105), (745, 28863), (1069, 20115), (1341, 16035), (2235, 9621), (3207, 6705), (4023, 5345)]