19390329

素因数分解:

$3^2\times 7^2\times {\mathrm{43969}}^1$

素因数の和:43989

約数の個数: 18

約数和(自身を含む): 32581770

約数和(自身を除く): 13191441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 43969, 131907, 307783, 395721, 923349, 2154481, 2770047, 6463443, 19390329]

約数ペア:

[(1, 19390329), (3, 6463443), (7, 2770047), (9, 2154481), (21, 923349), (49, 395721), (63, 307783), (147, 131907), (441, 43969)]