28370097

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 49944960

約数和(自身を除く): 21574863

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 137, 171, 173, 399, 411, 519, 959, 1197, 1211, 1233, 1557, 2603, 2877, 3287, 3633, 7809, 8631, 9861, 10899, 18221, 23009, 23427, 23701, 29583, 54663, 69027, 71103, 163989, 165907, 207081, 213309, 450319, 497721, 1350957, 1493163, 3152233, 4052871, 9456699, 28370097]

約数ペア:

[(1, 28370097), (3, 9456699), (7, 4052871), (9, 3152233), (19, 1493163), (21, 1350957), (57, 497721), (63, 450319), (133, 213309), (137, 207081), (171, 165907), (173, 163989), (399, 71103), (411, 69027), (519, 54663), (959, 29583), (1197, 23701), (1211, 23427), (1233, 23009), (1557, 18221), (2603, 10899), (2877, 9861), (3287, 8631), (3633, 7809)]