199893987

素因数分解:

$3^8\times {\mathrm{30467}}^1$

素因数の和:30491

約数の個数: 18

約数和(自身を含む): 299835588

約数和(自身を除く): 99941601

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 6561, 30467, 91401, 274203, 822609, 2467827, 7403481, 22210443, 66631329, 199893987]

約数ペア:

[(1, 199893987), (3, 66631329), (9, 22210443), (27, 7403481), (81, 2467827), (243, 822609), (729, 274203), (2187, 91401), (6561, 30467)]