20777295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17989}}^1$

素因数の和:18015

約数の個数: 32

約数和(自身を含む): 41448960

約数和(自身を除く): 20671665

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17989, 53967, 89945, 125923, 197879, 269835, 377769, 593637, 629615, 989395, 1385153, 1888845, 2968185, 4155459, 6925765, 20777295]

約数ペア:

[(1, 20777295), (3, 6925765), (5, 4155459), (7, 2968185), (11, 1888845), (15, 1385153), (21, 989395), (33, 629615), (35, 593637), (55, 377769), (77, 269835), (105, 197879), (165, 125923), (231, 89945), (385, 53967), (1155, 17989)]