239481

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:117

約数の個数: 24

約数和(自身を含む): 393120

約数和(自身を除く): 153639

約数列:

[1, 3, 9, 11, 33, 41, 59, 99, 123, 177, 369, 451, 531, 649, 1353, 1947, 2419, 4059, 5841, 7257, 21771, 26609, 79827, 239481]

約数ペア:

[(1, 239481), (3, 79827), (9, 26609), (11, 21771), (33, 7257), (41, 5841), (59, 4059), (99, 2419), (123, 1947), (177, 1353), (369, 649), (451, 531)]