21285712

素因数分解:

$2^4\times 7^1\times {\mathrm{190051}}^1$

素因数の和:190066

約数の個数: 20

約数和(自身を含む): 47132896

約数和(自身を除く): 25847184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190051, 380102, 760204, 1330357, 1520408, 2660714, 3040816, 5321428, 10642856, 21285712]

約数ペア:

[(1, 21285712), (2, 10642856), (4, 5321428), (7, 3040816), (8, 2660714), (14, 1520408), (16, 1330357), (28, 760204), (56, 380102), (112, 190051)]