19531780

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9127}}^1$

素因数の和:9243

約数の個数: 24

約数和(自身を含む): 41404608

約数和(自身を除く): 21872828

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9127, 18254, 36508, 45635, 91270, 182540, 976589, 1953178, 3906356, 4882945, 9765890, 19531780]

約数ペア:

[(1, 19531780), (2, 9765890), (4, 4882945), (5, 3906356), (10, 1953178), (20, 976589), (107, 182540), (214, 91270), (428, 45635), (535, 36508), (1070, 18254), (2140, 9127)]