216772919

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{691}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 253105920

約数和(自身を除く): 36333001

約数列:

[1, 11, 19, 79, 209, 361, 691, 869, 1501, 3971, 7601, 13129, 16511, 28519, 54589, 144419, 249451, 313709, 600479, 1037191, 2743961, 11409101, 19706629, 216772919]

約数ペア:

[(1, 216772919), (11, 19706629), (19, 11409101), (79, 2743961), (209, 1037191), (361, 600479), (691, 313709), (869, 249451), (1501, 144419), (3971, 54589), (7601, 28519), (13129, 16511)]