19913331

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{7039}}^1$

素因数の和:7106

約数の個数: 16

約数和(自身を含む): 28385280

約数和(自身を除く): 8471949

約数列:

[1, 3, 23, 41, 69, 123, 943, 2829, 7039, 21117, 161897, 288599, 485691, 865797, 6637777, 19913331]

約数ペア:

[(1, 19913331), (3, 6637777), (23, 865797), (41, 485691), (69, 288599), (123, 161897), (943, 21117), (2829, 7039)]