21019866

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{500473}}^1$

素因数の和:500485

約数の個数: 16

約数和(自身を含む): 48045504

約数和(自身を除く): 27025638

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 500473, 1000946, 1501419, 3002838, 3503311, 7006622, 10509933, 21019866]

約数ペア:

[(1, 21019866), (2, 10509933), (3, 7006622), (6, 3503311), (7, 3002838), (14, 1501419), (21, 1000946), (42, 500473)]