13121241

素因数分解:

$3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{1283}}^1$

素因数の和:1780

約数の個数: 16

約数和(自身を含む): 20050944

約数和(自身を除く): 6929703

約数列:

[1, 3, 7, 21, 487, 1283, 1461, 3409, 3849, 8981, 10227, 26943, 624821, 1874463, 4373747, 13121241]

約数ペア:

[(1, 13121241), (3, 4373747), (7, 1874463), (21, 624821), (487, 26943), (1283, 10227), (1461, 8981), (3409, 3849)]