20688808

素因数分解:

$2^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2909}}^1$

素因数の和:3049

約数の個数: 32

約数和(自身を含む): 44697600

約数和(自身を除く): 24008792

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 127, 254, 508, 889, 1016, 1778, 2909, 3556, 5818, 7112, 11636, 20363, 23272, 40726, 81452, 162904, 369443, 738886, 1477772, 2586101, 2955544, 5172202, 10344404, 20688808]

約数ペア:

[(1, 20688808), (2, 10344404), (4, 5172202), (7, 2955544), (8, 2586101), (14, 1477772), (28, 738886), (56, 369443), (127, 162904), (254, 81452), (508, 40726), (889, 23272), (1016, 20363), (1778, 11636), (2909, 7112), (3556, 5818)]