19045761

素因数分解:

$3^1\times 7^3\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 30105600

約数和(自身を除く): 11059839

約数列:

[1, 3, 7, 21, 49, 83, 147, 223, 249, 343, 581, 669, 1029, 1561, 1743, 4067, 4683, 10927, 12201, 18509, 28469, 32781, 55527, 76489, 85407, 129563, 229467, 388689, 906941, 2720823, 6348587, 19045761]

約数ペア:

[(1, 19045761), (3, 6348587), (7, 2720823), (21, 906941), (49, 388689), (83, 229467), (147, 129563), (223, 85407), (249, 76489), (343, 55527), (581, 32781), (669, 28469), (1029, 18509), (1561, 12201), (1743, 10927), (4067, 4683)]