18837861

素因数分解:

$3^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1571}}^1$

素因数の和:2152

約数の個数: 16

約数和(自身を含む): 28773888

約数和(自身を除く): 9936027

約数列:

[1, 3, 7, 21, 571, 1571, 1713, 3997, 4713, 10997, 11991, 32991, 897041, 2691123, 6279287, 18837861]

約数ペア:

[(1, 18837861), (3, 6279287), (7, 2691123), (21, 897041), (571, 32991), (1571, 11991), (1713, 10997), (3997, 4713)]