20285727

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 34020864

約数和(自身を除く): 13735137

約数列:

[1, 3, 7, 11, 21, 33, 77, 137, 231, 411, 641, 959, 1507, 1923, 2877, 4487, 4521, 7051, 10549, 13461, 21153, 31647, 49357, 87817, 148071, 263451, 614719, 965987, 1844157, 2897961, 6761909, 20285727]

約数ペア:

[(1, 20285727), (3, 6761909), (7, 2897961), (11, 1844157), (21, 965987), (33, 614719), (77, 263451), (137, 148071), (231, 87817), (411, 49357), (641, 31647), (959, 21153), (1507, 13461), (1923, 10549), (2877, 7051), (4487, 4521)]