19860147

素因数分解:

$3^9\times {\mathrm{1009}}^1$

素因数の和:1036

約数の個数: 20

約数和(自身を含む): 29819240

約数和(自身を除く): 9959093

約数列:

[1, 3, 9, 27, 81, 243, 729, 1009, 2187, 3027, 6561, 9081, 19683, 27243, 81729, 245187, 735561, 2206683, 6620049, 19860147]

約数ペア:

[(1, 19860147), (3, 6620049), (9, 2206683), (27, 735561), (81, 245187), (243, 81729), (729, 27243), (1009, 19683), (2187, 9081), (3027, 6561)]