19539730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{39877}}^1$

素因数の和:39898

約数の個数: 24

約数和(自身を含む): 40914828

約数和(自身を除く): 21375098

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 39877, 79754, 199385, 279139, 398770, 558278, 1395695, 1953973, 2791390, 3907946, 9769865, 19539730]

約数ペア:

[(1, 19539730), (2, 9769865), (5, 3907946), (7, 2791390), (10, 1953973), (14, 1395695), (35, 558278), (49, 398770), (70, 279139), (98, 199385), (245, 79754), (490, 39877)]