20974828

素因数分解:

$2^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{2647}}^1$

素因数の和:2941

約数の個数: 24

約数和(自身を含む): 42113792

約数和(自身を除く): 21138964

約数列:

[1, 2, 4, 7, 14, 28, 283, 566, 1132, 1981, 2647, 3962, 5294, 7924, 10588, 18529, 37058, 74116, 749101, 1498202, 2996404, 5243707, 10487414, 20974828]

約数ペア:

[(1, 20974828), (2, 10487414), (4, 5243707), (7, 2996404), (14, 1498202), (28, 749101), (283, 74116), (566, 37058), (1132, 18529), (1981, 10588), (2647, 7924), (3962, 5294)]