19969443

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{56893}}^1$

素因数の和:56915

約数の個数: 16

約数和(自身を含む): 31860640

約数和(自身を除く): 11891197

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 56893, 170679, 512037, 739609, 1536111, 2218827, 6656481, 19969443]

約数ペア:

[(1, 19969443), (3, 6656481), (9, 2218827), (13, 1536111), (27, 739609), (39, 512037), (117, 170679), (351, 56893)]