20902497

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2207}}^1$

素因数の和:2269

約数の個数: 32

約数和(自身を含む): 35610624

約数和(自身を除く): 14708127

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 123, 231, 287, 451, 861, 1353, 2207, 3157, 6621, 9471, 15449, 24277, 46347, 72831, 90487, 169939, 271461, 509817, 633409, 995357, 1900227, 2986071, 6967499, 20902497]

約数ペア:

[(1, 20902497), (3, 6967499), (7, 2986071), (11, 1900227), (21, 995357), (33, 633409), (41, 509817), (77, 271461), (123, 169939), (231, 90487), (287, 72831), (451, 46347), (861, 24277), (1353, 15449), (2207, 9471), (3157, 6621)]