20888439

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 35804160

約数和(自身を除く): 14915721

約数列:

[1, 3, 11, 13, 23, 29, 33, 39, 69, 73, 87, 143, 219, 253, 299, 319, 377, 429, 667, 759, 803, 897, 949, 957, 1131, 1679, 2001, 2117, 2409, 2847, 3289, 4147, 5037, 6351, 7337, 8671, 9867, 10439, 12441, 18469, 21827, 22011, 23287, 26013, 27521, 31317, 48691, 55407, 65481, 69861, 82563, 95381, 146073, 240097, 286143, 302731, 535601, 632983, 720291, 908193, 1606803, 1898949, 6962813, 20888439]

約数ペア:

[(1, 20888439), (3, 6962813), (11, 1898949), (13, 1606803), (23, 908193), (29, 720291), (33, 632983), (39, 535601), (69, 302731), (73, 286143), (87, 240097), (143, 146073), (219, 95381), (253, 82563), (299, 69861), (319, 65481), (377, 55407), (429, 48691), (667, 31317), (759, 27521), (803, 26013), (897, 23287), (949, 22011), (957, 21827), (1131, 18469), (1679, 12441), (2001, 10439), (2117, 9867), (2409, 8671), (2847, 7337), (3289, 6351), (4147, 5037)]