19919730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{663991}}^1$

素因数の和:664001

約数の個数: 16

約数和(自身を含む): 47807424

約数和(自身を除く): 27887694

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 663991, 1327982, 1991973, 3319955, 3983946, 6639910, 9959865, 19919730]

約数ペア:

[(1, 19919730), (2, 9959865), (3, 6639910), (5, 3983946), (6, 3319955), (10, 1991973), (15, 1327982), (30, 663991)]