21093380978

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1\times {\mathrm{261971}}^1$

素因数の和:262417

約数の個数: 16

約数和(自身を含む): 31989924864

約数和(自身を除く): 10896543886

約数列:

[1, 2, 127, 254, 317, 634, 40259, 80518, 261971, 523942, 33270317, 66540634, 83044807, 166089614, 10546690489, 21093380978]

約数ペア:

[(1, 21093380978), (2, 10546690489), (127, 166089614), (254, 83044807), (317, 66540634), (634, 33270317), (40259, 523942), (80518, 261971)]