19851921

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3307}}^1$

素因数の和:3365

約数の個数: 24

約数和(自身を含む): 30962880

約数和(自身を除く): 11110959

約数列:

[1, 3, 9, 23, 29, 69, 87, 207, 261, 667, 2001, 3307, 6003, 9921, 29763, 76061, 95903, 228183, 287709, 684549, 863127, 2205769, 6617307, 19851921]

約数ペア:

[(1, 19851921), (3, 6617307), (9, 2205769), (23, 863127), (29, 684549), (69, 287709), (87, 228183), (207, 95903), (261, 76061), (667, 29763), (2001, 9921), (3307, 6003)]