21621138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:959

約数の個数: 64

約数和(自身を含む): 54991872

約数和(自身を除く): 33370734

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 53, 66, 77, 106, 154, 159, 231, 318, 371, 462, 583, 742, 883, 1113, 1166, 1749, 1766, 2226, 2649, 3498, 4081, 5298, 6181, 8162, 9713, 12243, 12362, 18543, 19426, 24486, 29139, 37086, 46799, 58278, 67991, 93598, 135982, 140397, 203973, 280794, 327593, 407946, 514789, 655186, 982779, 1029578, 1544367, 1965558, 3088734, 3603523, 7207046, 10810569, 21621138]

約数ペア:

[(1, 21621138), (2, 10810569), (3, 7207046), (6, 3603523), (7, 3088734), (11, 1965558), (14, 1544367), (21, 1029578), (22, 982779), (33, 655186), (42, 514789), (53, 407946), (66, 327593), (77, 280794), (106, 203973), (154, 140397), (159, 135982), (231, 93598), (318, 67991), (371, 58278), (462, 46799), (583, 37086), (742, 29139), (883, 24486), (1113, 19426), (1166, 18543), (1749, 12362), (1766, 12243), (2226, 9713), (2649, 8162), (3498, 6181), (4081, 5298)]