21019278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{500459}}^1$

素因数の和:500471

約数の個数: 16

約数和(自身を含む): 48044160

約数和(自身を除く): 27024882

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 500459, 1000918, 1501377, 3002754, 3503213, 7006426, 10509639, 21019278]

約数ペア:

[(1, 21019278), (2, 10509639), (3, 7006426), (6, 3503213), (7, 3002754), (14, 1501377), (21, 1000918), (42, 500459)]