20801676848

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11927567}}^1$

素因数の和:11927684

約数の個数: 20

約数和(自身を含む): 40673006880

約数和(自身を除く): 19871330032

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11927567, 23855134, 47710268, 95420536, 190841072, 1300104803, 2600209606, 5200419212, 10400838424, 20801676848]

約数ペア:

[(1, 20801676848), (2, 10400838424), (4, 5200419212), (8, 2600209606), (16, 1300104803), (109, 190841072), (218, 95420536), (436, 47710268), (872, 23855134), (1744, 11927567)]