19884291

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{10639}}^1$

素因数の和:10738

約数の個数: 16

約数和(自身を含む): 30643200

約数和(自身を除く): 10758909

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 10639, 31917, 74473, 223419, 946871, 2840613, 6628097, 19884291]

約数ペア:

[(1, 19884291), (3, 6628097), (7, 2840613), (21, 946871), (89, 223419), (267, 74473), (623, 31917), (1869, 10639)]