21240412

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{10771}}^1$

素因数の和:10821

約数の個数: 24

約数和(自身を含む): 40718160

約数和(自身を除く): 19477748

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 116, 493, 986, 1972, 10771, 21542, 43084, 183107, 312359, 366214, 624718, 732428, 1249436, 5310103, 10620206, 21240412]

約数ペア:

[(1, 21240412), (2, 10620206), (4, 5310103), (17, 1249436), (29, 732428), (34, 624718), (58, 366214), (68, 312359), (116, 183107), (493, 43084), (986, 21542), (1972, 10771)]