21310156

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3607}}^1$

素因数の和:3829

約数の個数: 24

約数和(自身を含む): 42834176

約数和(自身を除く): 21524020

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 3607, 5908, 7214, 14428, 25249, 50498, 100996, 761077, 1522154, 3044308, 5327539, 10655078, 21310156]

約数ペア:

[(1, 21310156), (2, 10655078), (4, 5327539), (7, 3044308), (14, 1522154), (28, 761077), (211, 100996), (422, 50498), (844, 25249), (1477, 14428), (2954, 7214), (3607, 5908)]