19198971

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 12135429

約数列:

[1, 3, 9, 11, 27, 33, 99, 127, 297, 381, 509, 1143, 1397, 1527, 3429, 4191, 4581, 5599, 12573, 13743, 16797, 37719, 50391, 64643, 151173, 193929, 581787, 711073, 1745361, 2133219, 6399657, 19198971]

約数ペア:

[(1, 19198971), (3, 6399657), (9, 2133219), (11, 1745361), (27, 711073), (33, 581787), (99, 193929), (127, 151173), (297, 64643), (381, 50391), (509, 37719), (1143, 16797), (1397, 13743), (1527, 12573), (3429, 5599), (4191, 4581)]