19581237

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{55787}}^1$

素因数の和:55809

約数の個数: 16

約数和(自身を含む): 31241280

約数和(自身を除く): 11660043

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 55787, 167361, 502083, 725231, 1506249, 2175693, 6527079, 19581237]

約数ペア:

[(1, 19581237), (3, 6527079), (9, 2175693), (13, 1506249), (27, 725231), (39, 502083), (117, 167361), (351, 55787)]