21042329

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{757}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 27724608

約数和(自身を除く): 6682279

約数列:

[1, 7, 11, 19, 77, 133, 209, 361, 757, 1463, 2527, 3971, 5299, 8327, 14383, 27797, 58289, 100681, 158213, 273277, 1107491, 1912939, 3006047, 21042329]

約数ペア:

[(1, 21042329), (7, 3006047), (11, 1912939), (19, 1107491), (77, 273277), (133, 158213), (209, 100681), (361, 58289), (757, 27797), (1463, 14383), (2527, 8327), (3971, 5299)]