21304485

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9283}}^1$

素因数の和:9314

約数の個数: 32

約数和(自身を含む): 40106880

約数和(自身を除く): 18802395

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9283, 27849, 46415, 83547, 139245, 157811, 250641, 417735, 473433, 789055, 1253205, 1420299, 2367165, 4260897, 7101495, 21304485]

約数ペア:

[(1, 21304485), (3, 7101495), (5, 4260897), (9, 2367165), (15, 1420299), (17, 1253205), (27, 789055), (45, 473433), (51, 417735), (85, 250641), (135, 157811), (153, 139245), (255, 83547), (459, 46415), (765, 27849), (2295, 9283)]