81342219

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{63499}}^1$

素因数の和:63570

約数の個数: 16

約数和(自身を含む): 125984000

約数和(自身を除く): 44641781

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 63499, 190497, 444493, 1333479, 3873439, 11620317, 27114073, 81342219]

約数ペア:

[(1, 81342219), (3, 27114073), (7, 11620317), (21, 3873439), (61, 1333479), (183, 444493), (427, 190497), (1281, 63499)]