20826603

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 36741120

約数和(自身を除く): 15914517

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 127, 133, 137, 171, 381, 399, 411, 889, 959, 1143, 1197, 1233, 2413, 2603, 2667, 2877, 7239, 7809, 8001, 8631, 16891, 17399, 18221, 21717, 23427, 50673, 52197, 54663, 121793, 152019, 156591, 163989, 330581, 365379, 991743, 1096137, 2314067, 2975229, 6942201, 20826603]

約数ペア:

[(1, 20826603), (3, 6942201), (7, 2975229), (9, 2314067), (19, 1096137), (21, 991743), (57, 365379), (63, 330581), (127, 163989), (133, 156591), (137, 152019), (171, 121793), (381, 54663), (399, 52197), (411, 50673), (889, 23427), (959, 21717), (1143, 18221), (1197, 17399), (1233, 16891), (2413, 8631), (2603, 8001), (2667, 7809), (2877, 7239)]