21335358

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 49144320

約数和(自身を除く): 27808962

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 58, 66, 71, 87, 142, 157, 174, 213, 314, 319, 426, 471, 638, 781, 942, 957, 1562, 1727, 1914, 2059, 2343, 3454, 4118, 4553, 4686, 5181, 6177, 9106, 10362, 11147, 12354, 13659, 22294, 22649, 27318, 33441, 45298, 50083, 66882, 67947, 100166, 122617, 135894, 150249, 245234, 300498, 323263, 367851, 646526, 735702, 969789, 1939578, 3555893, 7111786, 10667679, 21335358]

約数ペア:

[(1, 21335358), (2, 10667679), (3, 7111786), (6, 3555893), (11, 1939578), (22, 969789), (29, 735702), (33, 646526), (58, 367851), (66, 323263), (71, 300498), (87, 245234), (142, 150249), (157, 135894), (174, 122617), (213, 100166), (314, 67947), (319, 66882), (426, 50083), (471, 45298), (638, 33441), (781, 27318), (942, 22649), (957, 22294), (1562, 13659), (1727, 12354), (1914, 11147), (2059, 10362), (2343, 9106), (3454, 6177), (4118, 5181), (4553, 4686)]