20019692

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 46475520

約数和(自身を除く): 26455828

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 121, 133, 154, 209, 242, 266, 308, 311, 418, 484, 532, 622, 836, 847, 1244, 1463, 1694, 2177, 2299, 2926, 3388, 3421, 4354, 4598, 5852, 5909, 6842, 8708, 9196, 11818, 13684, 16093, 23636, 23947, 32186, 37631, 41363, 47894, 64372, 64999, 75262, 82726, 95788, 129998, 150524, 165452, 259996, 263417, 454993, 526834, 714989, 909986, 1053668, 1429978, 1819972, 2859956, 5004923, 10009846, 20019692]

約数ペア:

[(1, 20019692), (2, 10009846), (4, 5004923), (7, 2859956), (11, 1819972), (14, 1429978), (19, 1053668), (22, 909986), (28, 714989), (38, 526834), (44, 454993), (76, 263417), (77, 259996), (121, 165452), (133, 150524), (154, 129998), (209, 95788), (242, 82726), (266, 75262), (308, 64999), (311, 64372), (418, 47894), (484, 41363), (532, 37631), (622, 32186), (836, 23947), (847, 23636), (1244, 16093), (1463, 13684), (1694, 11818), (2177, 9196), (2299, 8708), (2926, 6842), (3388, 5909), (3421, 5852), (4354, 4598)]