21257852

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69019}}^1$

素因数の和:69041

約数の個数: 24

約数和(自身を含む): 46381440

約数和(自身を除く): 25123588

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69019, 138038, 276076, 483133, 759209, 966266, 1518418, 1932532, 3036836, 5314463, 10628926, 21257852]

約数ペア:

[(1, 21257852), (2, 10628926), (4, 5314463), (7, 3036836), (11, 1932532), (14, 1518418), (22, 966266), (28, 759209), (44, 483133), (77, 276076), (154, 138038), (308, 69019)]