28178931

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 42819840

約数和(自身を除く): 14640909

約数列:

[1, 3, 11, 33, 41, 59, 123, 177, 353, 451, 649, 1059, 1353, 1947, 2419, 3883, 7257, 11649, 14473, 20827, 26609, 43419, 62481, 79827, 159203, 229097, 477609, 687291, 853907, 2561721, 9392977, 28178931]

約数ペア:

[(1, 28178931), (3, 9392977), (11, 2561721), (33, 853907), (41, 687291), (59, 477609), (123, 229097), (177, 159203), (353, 79827), (451, 62481), (649, 43419), (1059, 26609), (1353, 20827), (1947, 14473), (2419, 11649), (3883, 7257)]