20804936848

素因数分解:

$2^4\times {\mathrm{11621}}^1\times {\mathrm{111893}}^1$

素因数の和:123522

約数の個数: 20

約数和(自身を含む): 40313394108

約数和(自身を除く): 19508457260

約数列:

[1, 2, 4, 8, 16, 11621, 23242, 46484, 92968, 111893, 185936, 223786, 447572, 895144, 1790288, 1300308553, 2600617106, 5201234212, 10402468424, 20804936848]

約数ペア:

[(1, 20804936848), (2, 10402468424), (4, 5201234212), (8, 2600617106), (16, 1300308553), (11621, 1790288), (23242, 895144), (46484, 447572), (92968, 223786), (111893, 185936)]