27909777

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 43718400

約数和(自身を除く): 15808623

約数列:

[1, 3, 7, 21, 89, 109, 137, 267, 327, 411, 623, 763, 959, 1869, 2289, 2877, 9701, 12193, 14933, 29103, 36579, 44799, 67907, 85351, 104531, 203721, 256053, 313593, 1329037, 3987111, 9303259, 27909777]

約数ペア:

[(1, 27909777), (3, 9303259), (7, 3987111), (21, 1329037), (89, 313593), (109, 256053), (137, 203721), (267, 104531), (327, 85351), (411, 67907), (623, 44799), (763, 36579), (959, 29103), (1869, 14933), (2289, 12193), (2877, 9701)]