19927281

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{35521}}^1$

素因数の和:35552

約数の個数: 16

約数和(自身を含む): 30691008

約数和(自身を除く): 10763727

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 35521, 106563, 390731, 603857, 1172193, 1811571, 6642427, 19927281]

約数ペア:

[(1, 19927281), (3, 6642427), (11, 1811571), (17, 1172193), (33, 603857), (51, 390731), (187, 106563), (561, 35521)]