21293538

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 53581824

約数和(自身を除く): 32288286

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 47, 49, 67, 69, 94, 98, 134, 138, 141, 147, 161, 201, 282, 294, 322, 329, 402, 469, 483, 658, 938, 966, 987, 1081, 1127, 1407, 1541, 1974, 2162, 2254, 2303, 2814, 3082, 3149, 3243, 3283, 3381, 4606, 4623, 6298, 6486, 6566, 6762, 6909, 7567, 9246, 9447, 9849, 10787, 13818, 15134, 18894, 19698, 21574, 22043, 22701, 32361, 44086, 45402, 52969, 64722, 66129, 72427, 75509, 105938, 132258, 144854, 151018, 154301, 158907, 217281, 226527, 308602, 317814, 434562, 453054, 462903, 506989, 925806, 1013978, 1520967, 3041934, 3548923, 7097846, 10646769, 21293538]

約数ペア:

[(1, 21293538), (2, 10646769), (3, 7097846), (6, 3548923), (7, 3041934), (14, 1520967), (21, 1013978), (23, 925806), (42, 506989), (46, 462903), (47, 453054), (49, 434562), (67, 317814), (69, 308602), (94, 226527), (98, 217281), (134, 158907), (138, 154301), (141, 151018), (147, 144854), (161, 132258), (201, 105938), (282, 75509), (294, 72427), (322, 66129), (329, 64722), (402, 52969), (469, 45402), (483, 44086), (658, 32361), (938, 22701), (966, 22043), (987, 21574), (1081, 19698), (1127, 18894), (1407, 15134), (1541, 13818), (1974, 10787), (2162, 9849), (2254, 9447), (2303, 9246), (2814, 7567), (3082, 6909), (3149, 6762), (3243, 6566), (3283, 6486), (3381, 6298), (4606, 4623)]