20990676

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{883}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 56236544

約数和(自身を除く): 35245868

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 283, 566, 849, 883, 1132, 1698, 1766, 1981, 2649, 3396, 3532, 3962, 5298, 5943, 6181, 7924, 10596, 11886, 12362, 18543, 23772, 24724, 37086, 74172, 249889, 499778, 749667, 999556, 1499334, 1749223, 2998668, 3498446, 5247669, 6996892, 10495338, 20990676]

約数ペア:

[(1, 20990676), (2, 10495338), (3, 6996892), (4, 5247669), (6, 3498446), (7, 2998668), (12, 1749223), (14, 1499334), (21, 999556), (28, 749667), (42, 499778), (84, 249889), (283, 74172), (566, 37086), (849, 24724), (883, 23772), (1132, 18543), (1698, 12362), (1766, 11886), (1981, 10596), (2649, 7924), (3396, 6181), (3532, 5943), (3962, 5298)]