491967

素因数分解:

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

素因数の和:172

約数の個数: 32

約数和(自身を含む): 883200

約数和(自身を除く): 391233

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 137, 171, 189, 399, 411, 513, 959, 1197, 1233, 2603, 2877, 3591, 3699, 7809, 8631, 18221, 23427, 25893, 54663, 70281, 163989, 491967]

約数ペア:

[(1, 491967), (3, 163989), (7, 70281), (9, 54663), (19, 25893), (21, 23427), (27, 18221), (57, 8631), (63, 7809), (133, 3699), (137, 3591), (171, 2877), (189, 2603), (399, 1233), (411, 1197), (513, 959)]