21382161

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{1511}}^1$

素因数の和:1656

約数の個数: 16

約数和(自身を含む): 29393280

約数和(自身を除く): 8011119

約数列:

[1, 3, 53, 89, 159, 267, 1511, 4533, 4717, 14151, 80083, 134479, 240249, 403437, 7127387, 21382161]

約数ペア:

[(1, 21382161), (3, 7127387), (53, 403437), (89, 240249), (159, 134479), (267, 80083), (1511, 14151), (4533, 4717)]