18870321

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1\times {\mathrm{353}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 25623936

約数和(自身を除く): 6753615

約数列:

[1, 3, 103, 173, 309, 353, 519, 1059, 17819, 36359, 53457, 61069, 109077, 183207, 6290107, 18870321]

約数ペア:

[(1, 18870321), (3, 6290107), (103, 183207), (173, 109077), (309, 61069), (353, 53457), (519, 36359), (1059, 17819)]