66689973

素因数分解:

$3^4\times 7^1\times {\mathrm{117619}}^1$

素因数の和:117638

約数の個数: 20

約数和(自身を含む): 113856160

約数和(自身を除く): 47166187

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 117619, 352857, 823333, 1058571, 2469999, 3175713, 7409997, 9527139, 22229991, 66689973]

約数ペア:

[(1, 66689973), (3, 22229991), (7, 9527139), (9, 7409997), (21, 3175713), (27, 2469999), (63, 1058571), (81, 823333), (189, 352857), (567, 117619)]