20197684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20443}}^1$

素因数の和:20479

約数の個数: 24

約数和(自身を含む): 40070240

約数和(自身を除く): 19872556

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20443, 40886, 81772, 265759, 388417, 531518, 776834, 1063036, 1553668, 5049421, 10098842, 20197684]

約数ペア:

[(1, 20197684), (2, 10098842), (4, 5049421), (13, 1553668), (19, 1063036), (26, 776834), (38, 531518), (52, 388417), (76, 265759), (247, 81772), (494, 40886), (988, 20443)]