21078572

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{2897}}^1$

素因数の和:3025

約数の個数: 24

約数和(自身を含む): 39435984

約数和(自身を除く): 18357412

約数列:

[1, 2, 4, 17, 34, 68, 107, 214, 428, 1819, 2897, 3638, 5794, 7276, 11588, 49249, 98498, 196996, 309979, 619958, 1239916, 5269643, 10539286, 21078572]

約数ペア:

[(1, 21078572), (2, 10539286), (4, 5269643), (17, 1239916), (34, 619958), (68, 309979), (107, 196996), (214, 98498), (428, 49249), (1819, 11588), (2897, 7276), (3638, 5794)]