20173455

素因数分解:

$3^4\times 5^1\times {\mathrm{49811}}^1$

素因数の和:49828

約数の個数: 20

約数和(自身を含む): 36163512

約数和(自身を除く): 15990057

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49811, 149433, 249055, 448299, 747165, 1344897, 2241495, 4034691, 6724485, 20173455]

約数ペア:

[(1, 20173455), (3, 6724485), (5, 4034691), (9, 2241495), (15, 1344897), (27, 747165), (45, 448299), (81, 249055), (135, 149433), (405, 49811)]