18805017

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 31555584

約数和(自身を除く): 12750567

約数列:

[1, 3, 7, 11, 21, 33, 77, 127, 231, 381, 641, 889, 1397, 1923, 2667, 4191, 4487, 7051, 9779, 13461, 21153, 29337, 49357, 81407, 148071, 244221, 569849, 895477, 1709547, 2686431, 6268339, 18805017]

約数ペア:

[(1, 18805017), (3, 6268339), (7, 2686431), (11, 1709547), (21, 895477), (33, 569849), (77, 244221), (127, 148071), (231, 81407), (381, 49357), (641, 29337), (889, 21153), (1397, 13461), (1923, 9779), (2667, 7051), (4191, 4487)]