163989

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:169

約数の個数: 24

約数和(自身を含む): 287040

約数和(自身を除く): 123051

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 137, 171, 399, 411, 959, 1197, 1233, 2603, 2877, 7809, 8631, 18221, 23427, 54663, 163989]

約数ペア:

[(1, 163989), (3, 54663), (7, 23427), (9, 18221), (19, 8631), (21, 7809), (57, 2877), (63, 2603), (133, 1233), (137, 1197), (171, 959), (399, 411)]