20018154

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{256643}}^1$

素因数の和:256661

約数の個数: 16

約数和(自身を含む): 43116192

約数和(自身を除く): 23098038

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 256643, 513286, 769929, 1539858, 3336359, 6672718, 10009077, 20018154]

約数ペア:

[(1, 20018154), (2, 10009077), (3, 6672718), (6, 3336359), (13, 1539858), (26, 769929), (39, 513286), (78, 256643)]