20671538

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:697

約数の個数: 16

約数和(自身を含む): 31467744

約数和(自身を除く): 10796206

約数列:

[1, 2, 131, 257, 262, 307, 514, 614, 33667, 40217, 67334, 78899, 80434, 157798, 10335769, 20671538]

約数ペア:

[(1, 20671538), (2, 10335769), (131, 157798), (257, 80434), (262, 78899), (307, 67334), (514, 40217), (614, 33667)]