20826717

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21493}}^1$

素因数の和:21532

約数の個数: 16

約数和(自身を含む): 30951360

約数和(自身を除く): 10124643

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21493, 64479, 365381, 408367, 1096143, 1225101, 6942239, 20826717]

約数ペア:

[(1, 20826717), (3, 6942239), (17, 1225101), (19, 1096143), (51, 408367), (57, 365381), (323, 64479), (969, 21493)]