19208979

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1307}}^1$

素因数の和:1407

約数の個数: 24

約数和(自身を含む): 29382912

約数和(自身を除く): 10173933

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1307, 1633, 3921, 4899, 11763, 14697, 30061, 90183, 92797, 270549, 278391, 835173, 2134331, 6402993, 19208979]

約数ペア:

[(1, 19208979), (3, 6402993), (9, 2134331), (23, 835173), (69, 278391), (71, 270549), (207, 92797), (213, 90183), (639, 30061), (1307, 14697), (1633, 11763), (3921, 4899)]