21000618136

素因数分解:

$2^3\times {\mathrm{209353}}^1\times {\mathrm{12539}}^1$

素因数の和:221898

約数の個数: 16

約数和(自身を含む): 39379487400

約数和(自身を除く): 18378869264

約数列:

[1, 2, 4, 8, 12539, 25078, 50156, 100312, 209353, 418706, 837412, 1674824, 2625077267, 5250154534, 10500309068, 21000618136]

約数ペア:

[(1, 21000618136), (2, 10500309068), (4, 5250154534), (8, 2625077267), (12539, 1674824), (25078, 837412), (50156, 418706), (100312, 209353)]