28361073

素因数分解:

$3^1\times {\mathrm{13}}^4\times {\mathrm{331}}^1$

素因数の和:386

約数の個数: 20

約数和(自身を含む): 41089648

約数和(自身を除く): 12728575

約数列:

[1, 3, 13, 39, 169, 331, 507, 993, 2197, 4303, 6591, 12909, 28561, 55939, 85683, 167817, 727207, 2181621, 9453691, 28361073]

約数ペア:

[(1, 28361073), (3, 9453691), (13, 2181621), (39, 727207), (169, 167817), (331, 85683), (507, 55939), (993, 28561), (2197, 12909), (4303, 6591)]