21310982

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 41442192

約数和(自身を除く): 20131210

約数列:

[1, 2, 7, 11, 14, 22, 49, 53, 77, 98, 106, 154, 371, 373, 539, 583, 742, 746, 1078, 1166, 2597, 2611, 4081, 4103, 5194, 5222, 8162, 8206, 18277, 19769, 28567, 28721, 36554, 39538, 57134, 57442, 138383, 201047, 217459, 276766, 402094, 434918, 968681, 1522213, 1937362, 3044426, 10655491, 21310982]

約数ペア:

[(1, 21310982), (2, 10655491), (7, 3044426), (11, 1937362), (14, 1522213), (22, 968681), (49, 434918), (53, 402094), (77, 276766), (98, 217459), (106, 201047), (154, 138383), (371, 57442), (373, 57134), (539, 39538), (583, 36554), (742, 28721), (746, 28567), (1078, 19769), (1166, 18277), (2597, 8206), (2611, 8162), (4081, 5222), (4103, 5194)]