20080972387

素因数分解:

$7^4\times {\mathrm{71}}^1\times {\mathrm{117797}}^1$

素因数の和:117896

約数の個数: 20

約数和(自身を含む): 23756558256

約数和(自身を除く): 3675585869

約数列:

[1, 7, 49, 71, 343, 497, 2401, 3479, 24353, 117797, 170471, 824579, 5772053, 8363587, 40404371, 58545109, 282830597, 409815763, 2868710341, 20080972387]

約数ペア:

[(1, 20080972387), (7, 2868710341), (49, 409815763), (71, 282830597), (343, 58545109), (497, 40404371), (2401, 8363587), (3479, 5772053), (24353, 824579), (117797, 170471)]