20143893

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 36126720

約数和(自身を除く): 15982827

約数列:

[1, 3, 7, 11, 21, 29, 31, 33, 77, 87, 93, 97, 203, 217, 231, 291, 319, 341, 609, 651, 679, 899, 957, 1023, 1067, 2037, 2233, 2387, 2697, 2813, 3007, 3201, 6293, 6699, 7161, 7469, 8439, 9021, 9889, 18879, 19691, 21049, 22407, 29667, 30943, 33077, 59073, 63147, 69223, 87203, 92829, 99231, 207669, 216601, 231539, 261609, 610421, 649803, 694617, 959233, 1831263, 2877699, 6714631, 20143893]

約数ペア:

[(1, 20143893), (3, 6714631), (7, 2877699), (11, 1831263), (21, 959233), (29, 694617), (31, 649803), (33, 610421), (77, 261609), (87, 231539), (93, 216601), (97, 207669), (203, 99231), (217, 92829), (231, 87203), (291, 69223), (319, 63147), (341, 59073), (609, 33077), (651, 30943), (679, 29667), (899, 22407), (957, 21049), (1023, 19691), (1067, 18879), (2037, 9889), (2233, 9021), (2387, 8439), (2697, 7469), (2813, 7161), (3007, 6699), (3201, 6293)]