20691104

素因数分解:

$2^5\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1301}}^1$

素因数の和:1389

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 26555872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 71, 112, 142, 224, 284, 497, 568, 994, 1136, 1301, 1988, 2272, 2602, 3976, 5204, 7952, 9107, 10408, 15904, 18214, 20816, 36428, 41632, 72856, 92371, 145712, 184742, 291424, 369484, 646597, 738968, 1293194, 1477936, 2586388, 2955872, 5172776, 10345552, 20691104]

約数ペア:

[(1, 20691104), (2, 10345552), (4, 5172776), (7, 2955872), (8, 2586388), (14, 1477936), (16, 1293194), (28, 738968), (32, 646597), (56, 369484), (71, 291424), (112, 184742), (142, 145712), (224, 92371), (284, 72856), (497, 41632), (568, 36428), (994, 20816), (1136, 18214), (1301, 15904), (1988, 10408), (2272, 9107), (2602, 7952), (3976, 5204)]