19686945

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1031}}^1$

素因数の和:1125

約数の個数: 32

約数和(自身を含む): 33684480

約数和(自身を除く): 13997535

約数列:

[1, 3, 5, 15, 19, 57, 67, 95, 201, 285, 335, 1005, 1031, 1273, 3093, 3819, 5155, 6365, 15465, 19095, 19589, 58767, 69077, 97945, 207231, 293835, 345385, 1036155, 1312463, 3937389, 6562315, 19686945]

約数ペア:

[(1, 19686945), (3, 6562315), (5, 3937389), (15, 1312463), (19, 1036155), (57, 345385), (67, 293835), (95, 207231), (201, 97945), (285, 69077), (335, 58767), (1005, 19589), (1031, 19095), (1273, 15465), (3093, 6365), (3819, 5155)]